View Full Version : Astrophysics
- Solar Flares on Steroids: NASA
- recommendation
- Mass and space
- "Wobble" of Planetary Core
- hypothetical question
- [SOLVED] Motion sickness
- Did Primordial Black Holes evaporate?
- Gravity: Strength in Weakness: CSM
- Conceptual Question in Gibbs Orbit Determination
- Gamma rays may have devastated life on Earth: Newscientist.com
- ORSA Software
- Issac Asimov moon planet theory
- Hubble chases exploding stars: re dark energy
- Worm Holes!
- Virial Theorem
- new way to find expantion?
- Precession-Time Paradox
- static universe
- [SOLVED] round and round she goes
- Dark Matter as primordial Black Holes in extended Halos
- energy
- the phantom planets
- Gravitational differential
- gamma rays origin
- gravitational radiation
- question
- why orbits eliptical?
- An Introduction to Black Hole Thermodynamics
- Pink black holes
- Type 1a Supernova
- Cosmic Reality Check: wired.com
- General Questions about Stars
- Planetary rings
- GRB-and the internet?
- The expanding universe
- [SOLVED] The Roche Limit
- Alan Guth's Inflationary Theory
- GRB Question
- Can you measure a star's diameter directly?
- Planet cores precession
- Gravitation slingshot
- Lunar Eclipse
- question about light and blackholes
- Good read for basic background info
- Kepler's Third Law
- Geosynchronous Orbit
- Other planetary systems
- Ptolemy was not so wrong...?
- Collisions of large bodies starting at stationary positions
- Understanding Hawking radiation
- The density of Mass relative to a critical mass
- Hawking Radiation 2 (different question)
- zero gravity
- determining orbits from R.A., Dec, & time
- Deep Space Exploration?
- determining stable orbits for other stars
- neutron stars new discovery
- Blackholes and time
- Neutrino Flux...
- Hawking Radiation...
- Active Galactic Nuclei?
- Significance of equal Sun and Moon apparent sizes?
- The Coronal Heating Myth Resolved
- Cosmic Ray Observatory...
- Newton-Hooke Equasion...
- Binary Planets
- What if the sun was blue?
- What is a planet's order called?
- Distance to star, much little
- Gravity acting as a repulsive forces at long distances
- Matter Exceeding the Speed of Light
- super clusters
- Physics of space travel
- What the spectrum of radiation of stellar objects depends of?
- Double Star characteristic frequencies of light
- Space-Time Whirlpools...
- Help with Black Hole theory
- Schw. black hole ringing frequencies
- Difference between a Gravity Well and a Black Hole
- Orbiting
- Formulas ^_^
- heart of glass
- Black Hole Blast...
- Looking for a good book
- astrophysics
- equasions (help!!)
- Stellar Structure and Evolution
- variable stars
- Star Collision
- variable star
- Pull of the Galactic Center
- Big Bang Blast!
- Neuron Stellar Cores...
- Hollowed out world
- Escaping from the solar system
- Is The Speed Of Light "Slowing Down"?
- beginners...
- Angular momentum at an angle!
- EM field of black hole
- Stellar Modelling
- Any questions?
- How is the density of a white dwarf star calculated?
- Is information lost in a black hole?
- silly question about gravity
- Good astrophysics schools in california
- gravitational field of globular clusters...?
- Orbit Simulator
- A simple Chart
- [SOLVED] Two black holes and the event horizon..
- Angular momentum in close binaries
- sedna
- Conjunction of Venus and Sun...a rare event
- Mass increase of black holes
- Classification of Stella Spectra
- Distance between orbits
- Textbook on Numerical Celestial Mechanics
- A question about the sun and blackbody
- Solar Modelling
- Blackhole Symmetry
- Analogous Hawking Radiation from Astrophysical Black Hole Accretion
- Geosynchronous station keeping
- what is the calculated mass of a post supernovae star
- what mass is lost after a hypernovae?
- Spaceships a'turnin round and round -- in space
- Substances on the stars
- Some other curious questions about stars...
- How to measure the Distance from Earth to Sun?
- Sunrise from west
- Help! Distance between Mu Leporis & Nihal?
- "Alive" or already "dead"
- How the calculated total velocity derived ?
- Gigantic Galaxy...
- Just curiosity star collision
- oddity
- black holes
- Prodigy Planet...
- Asteroids and Space Rocks
- Entering the Sphere of Influence
- density of black holes?
- Question--can a neutron star shed mass?
- A "new" Martian calendar?
- Transfer orbits for dummies! A hillbilly tutorial.
- evaluate my brand new program! :) satelite motion around earth!
- Detailed Mass-Luminosity Relation for Main Sequence Stars
- Supernova ignition.
- Question regarding 'center'
- Transit of Venus mathematics please.
- venus transit question
- Accretion disk model: Hydrodynamical or collisional N-Body?
- red shift dilemna
- Space as a vacuum and earth's atmosphere
- Glittering Galaxy...
- What happens to stars smaller than ours?
- Planetary nebula...
- Black Hole Radiation
- can you help me?
- Killer App!
- Pondering Question
- hyperbolic interplanetary transfer
- Black holes and the Chandrasekhar limit
- Laplace-Runge Lenz vector
- Oppenheimer-Volkov degeneracy...
- Black hole paradox solved?
- gravity and angular momentum
- The Cause Of Spin.
- About 'Hawking Radiation'
- What is a Singularity?
- "What caused the planets to aggregate as they did?
- Why Orbits and Rotation?
- Orbit Determination for Dummies! Another hillbilly tutorial.
- Why do neutron stars have magnetic fields
- B-field of n-star
- n-star vs. BH
- n-star vs. BH supernova
- orbits around sun
- Planets
- x-rays from center of galaxy
- Dark Matter
- Three body problem
- Calculating viewing times of satellite from groundstation
- Sean A Hayward-Energy and entropy conservation for dynamical black holes
- solar features
- Neutral Neutronium...
- geostationary satellites
- Seismic Stars...
- Particle-DarkMatter...
- Clustering Galaxies
- QG plasma and gamma ray bursters
- The Denouement of Blue Supergiants
- Entropy of a star
- Weightlessness in the Center of The Earth?
- star question
- Star formation and distribution in spiral galaxies
- Why do stars emit electromagnetic waves?
- Your "weight" on a "Space Elevator"?
- neutron stars and colour force
- The Orion Trapezium
- Quantum Gravity Forum at PF
- Good Orbital Mechanics book?
- Escape Velocity Formula
- Why singularities and not exclusion?
- Green stars?
- The Sun's X-file Under The Spotlight
- Moons of Moons
- why does Bode's law work?
- neutron stars and colour force...
- Perception of color in space...
- Kepler's Laws
- orbiting the earth
- Need Help on twin-planet problem!
- something for everyone
- Spin of Mercury
- How to calculate the time taken for the sun to cool down?
- We always see the same side of the moon
- What shall we call this class of star?
- Relate the two pictures
- crescent moon
- Converting a State Vector
- Theoretical Extinguishing of the Sun with water!
- Stellar life expectancy
- Let's try another way...
- Gravitational effect of sun on earth
- how does velocity affects the shape of orbit
- Mu
- Calculating E or M from a State Vector
- Galactic Halo's
- elliptical orbits
- Mutual solar-extrasolar orbital foci
- Will the asteroids eventually (re)form a 10th planet?
- who rotates around whom?
- GRB's
- A rock, the earth, an ellipse and the joys of angular momentum
- stellar atmosphere
- Mass of Jupiter using as Many moons as Possible
- Satellite orbit
- Graph of G Potential vs. Radius
- 3 Questions about our universe???
- What is the significance of the Cauchy horizon?
- Orbital Motion Help
- Maximum Radial Velocity
- A star's orbit
- Black Hole Blast...
- Travelling to the moon.
- Gravity Waves?
- If Sun = 98% H & He, why continuous spectrum?
- Why can you see white through H-alpha filter?
- Nebula
- The cosmologic constant problem
- When is a star born?
- Does the gravity constant change?
- A question in Kepler's second and third laws.
- Minimum mass of a black hole
- how to estimate star's mass without gravitation constant?
- Rotation
- Binary Planets
- Codes for Stellar Astrophyiscs
- Roche limits with a hint of internal bonds.
- Creating a black hole.
- H- and HII ions
- planet swapping
- Solar Eclipse local circumstances
- Interstellar medium: Theory and models.
- Ring Nebula
- n-body simulation test with sun, earth and moon
- how does a pulsar die?
- Documentry Series: SPACE
- Star bifurcation
- Terrestrial, asteroidal and gaseous
- A starkiller, theoretically possible? (Star Trek: Generations)
- character of shock wave
- old idea?
- Black holes effect Reality?
- Change in Triple-Alpha Process?
- artificial atmosphere
- New images!!!
- Mass-Luminosity Relationship
- "...anomalous distribution of..."
- Multi Star Solar Systems
- G formula?
- Hubble Orbit
- Astrophysics -What actually is this?
- Difference between flare, CME and SPEs
- Effects of a Closed Universe
- is it possible?
- Angle of the Sun?
- Trojans
- Help with an orbit sim
- Our moon does not turn ??
- initial condition of the restricted problem of three bodies
- Stellar Wobbles
- Blackbody radiation
- zero stars next to the Sun?
- Dark Energy Dark Matter
- new theory
- convert between Equatorial and ecliptic elements
- Have any of you heard about
- Hawking Radiation – Empty space virtual antiparticle-particle pairs
- Exoplanet Dynamics
- orbital distance
- the orbit of the earth
- mini sun?
- why is the moon drifting into space
- Multiple star planetary system dynamic
- Oort Cloud Treat to Interstellar Space Travel
- Physics of Dark Matter (theory)
- Need Help
- Venus Perihelion
- Why is it difficult to measure the perihelion advance of the planet Venus? Help!
- Orange moon
- Newton's Equation
- How do you derive the tidal force equation?
- Is it possible for a Rocky Giant with rings around it?
- 3 Questions - Why are some orbits...
- Nearby supernova and solar wind
- 1-dimensional problem in newtonian gravity- HELP!!
- Effects of spontaneous gravity reduction
- What is a degenerate gas?
- Stellar size limit
- White dwarfs
- Acceleration At The Event Horizon
- Redshift, Blueshift
- Schwartzchild Radius & entropy
- problem of process noise of satellite orbit determination
- Difference between BH's and BH's?
- process noise of satellite orbit determination
- Zaheer A
- Need Source Code In "c" For 2-Bodies Gravitational Problem
- Baricentre (barycenter) - does it 'wobble'?
- what if
- Neutron stars
- Anterior Propulsion
- optic and velocity
- Gravitational Waves of Early Universe
- Main Sequence
- spin factors
- Debye length?
- My first post here and a question
- Why are orbits elliptical?
- creation of heavy elements: r and s process
- NBody evaluation, is my model correct?
- Solar activity peak in April 1981?
- BHs Matter
- Neutron Stars
- Black Holes and Thermodynamics
- Maximum count for mutually bound stars
- Blackholes
- Null energy condition
- Solar Eclipses
- moon-earth slingshot
- The path of our planetary bodies
- Understanding the Extended Kalman Filter
- Virtual pair production - black holes
- pulsars with irregular periodicity radiation
- Restricted circular 3 body problem RC3BP
- Galactic Formation
- Does light emitted from the edge of the sun have a different wavelength than light em
- powered gravity assists
- Neutron star
- Neutronium armor
- Solar/stellar models
- "10th Planet" resonance with Neptune
- does the 3-body problem have stable solutions?
- Action
- Supernova
- [Milky way] Is it a spiral?
- Does this look accurate to you?
- How closely could the Moon orbit the Earth
- Galaxy orbit
- Determining orbital elements
- orbit smulation and speed of gravitation
- Why Can't Rocky Planets Exceed 14 Times Earth's Size?
- Universe
- Confused on Orbits: Ellipses vs Circles
- Changing the Earth's orbit?
- Black hole - entrance theory
- Formula for solar radiation pressure
- backward galxy
- astro- modelling a white dwarf via polytrope
- ellipse,polar equation 3D
- closest distance between two conics (ellipse,hyp.,par.)
- course navy:astrodynamics
- course :astrophysics ,introduction ,e.a
- Question on stellar absorption spectra
- Question on the derivation of Wein's displacement law
- The Susskind "Counter Information Paradox?
- I am probably going to be critizied for this, but...
- Halo Orbits
- Photon, Gravity, Mass and Black Holes.
- Quantum Geometry and Schwarzschild Singularity?
- F=mv^2/r and Geosynchronouse orbits
- Gravistars ?
- How does gravity repel?
- The Apollo Laser Ranger Retroreflector Experiment
- Astrophysics
- Blue-shifted Galaxies
- slingshot effect
- Three body problem
- Habitable zone and Tidal Lock
- Ring system around the Earth
- Moon's orbital acceleration
- Converting from the horizontal system to the equatorial system
- Why are geosynchronous orbirs in equatorial plane circular?
- The Center of Galaxys
- Why don't stars explode? What holds them together?
- Elements formed in supernova
- Spacecraft Mission Design
- Quick question about black holes...
- So, feel free to smack me with an education if I'm wrong but...
- Important Findings on Dark Matter
- Using the EKF for estimating a noisy sinewave
- black hole question
- Black hole-event horizon
- Venus Retrograde Rotation Redux
- the maximum range of a missile_the earth is not flat
- Where does it all go?
- spin of the moon
- Free Fall Speed
- Destroying Stars?
- The Latest on the Japanese Asteroid Probe
- gravitational tractor for towing asteroids
- edmund halley and the venus transit
- precession of perihelion
- Orbits & global Warming
- Gravitational Waves
- Cooperstock and Tieu Respond to Criticisms
- Alternative theories being tested by Gravity probe B
- Gravitational flux in solar system?
- More Black Hole Questions
- black holes again
- Moon Satellite
- Spacetime Diagrams
- How do the moon's & earth's orbital planes intersect?
- Nemesis and Planet X
- jupiter
- Isothermal v NFW halos
- Destroying a planet
- Not sure this is the right thread for this?
- Finding the distance to an Asteroid
- black holes
- A New Explanation for Venus' Retrograde Rotation
- vaporized black holes?
- Singularity
- Close encounters of the massive kind
- Explain to me the proccess of...
- Planet ejection
- MOND overview for beginners
- Greetings, and a few questions.
- Stellar Evolution
- Hawking radiation, Is it possible?
- Supernova?
- Jet propulsion in space???
- Cepheid
- Black holes: best candidate for dark matter?
- variable stars
- Urr, this doesn't seem like it should be very hard but well, good 'ol me
- subsidiary maxima
- expected sound of colliding black holes
- We all love to prove things.. [spectral broadening/relativity]
- The view from a ring singularity?
- Star Building
- The Cosmic Ying and Yang
- Schechter Function of Galaxy Luminosity-Density relationship
- CNO cycle
- BVRIJHK photometry
- spin of a black hole
- designation 2003UB313?
- orbital period vs. diameter
- Regarding DM halos
- Temperature
- White Dwarfs, > Chandra Mass?
- Can a black hole self-destruct?
- Please explain to a thick man.....
- Hans Bethe
- Face on Surface Brightness Profile For Spiral Galaxies
- collision of black holes?
- Is there also a He 'fog'?
- Inspire a pleb
- Interstellar Travel
- some questions on star evolution
- GBE's
- Death nell
- Venus Synodic Period
- Rotating Anisotropic universe
- How much of Computer Science?
- Finding Dark Matter
- Dark matter at colliders
- Time Dilation and Black Hole Inflation
- What is a Plummer Sphere Exactly?
- Why are Globular Clusters so Metal poor?
- Black Holes and Big Bangs
- Major Access = Averate Distance over Eccentric Anomaly
- Angles on the celestial sphere
- Stephan's Quintet
- The trouble with Sirius B
- What keeps the planets in their consistant orbit?
- Watch out, n00b about :) Black Holes Question.
- Rotation Of Spiral Galaxies
- bolometric correction
- Question about movement
- Black Hole
- Galatic Frequencies
- the most intnse solar strom in 50 years!
- Possibility of igniting Jupiter
- nuclear reactions in AGN accretion disk
- Entropy
- Are Images of Space Distorted by Gravity?
- tidal locking radius
- planetary retention of atmospheres
- First stars now thought to be 400 MLY after BB?
- Highest redshift observed?
- Redshift > 1.46 means Recessional Velocity over C?
- How do satellites stay in orbit?
- Spacecraft Attitude Control Simulation
- The Great Attractor
- Moons of moons?
- the physics of dark matter & energy
- Neutron star: heaviest teaspoon of matter
- shooting a gun
- strong resonance
- eclipse of sun
- whiteholes
- What object is this?
- Big Crunch Or Big rip
- Just a thought about gravity.
- why can't I do this?
- someone want to have fun with asteroid simulation?
- Calculating apparent positions of sun and moon
- Help me understand this equation
- Parsecs
- Problem with my universe!
- Nemesis theory
- Nasa's new and improved ANTI-MATTER space ship
- wmap and razors
- Time after big bang we can observe, uncertainty principle
- The Origin of Mass and the Feebleness of Gravity
- Weird Question About Satellites
- Planetary Orbits
- Video Recommendations for Black Holes & other space-related phenomena...
- Crazy thought
- Would this be a stable system?
- Question about black holes
- acceleration due to the solar wind
- NASA Achieves Breakthrough In Black Hole Simulation
- Radio Waves emitted by Black Holes
- Stoping the desturaction of the sun?
- Plasma luminosity
- escape velocity of a body from a black hole.
- Molecular Hydrogen at the Edge of Universe!
- ASCL.net - Astrophysics Source Code Library
- accretion disc observations
- Does gravity explain all orbits in our solar system?
- The Astronomical Buckyball
- Why do Neutron Stars have a Magnetic Field?
- Gravitational collapse, star precipitation and black hole formation.
- Extra galactic stars
- Pioneer Anomaly
- Possible to Shield Astronauts from Cosmic Radiation?
- can a commet orbit a planet?
- Structure of the Milkyway Spiral Redifined
- Hubble Recession vs. Moon Recession
- Time in the past
- Inertia and Black Holes
- MECO - has it got legs?
- Distance modulus
- What is singularity?
- Dense dots
- Why is the solar system, & galaxies seemingly rotate on a 2-D plane?
- For those with plenty of time on their hands!
- A couple of free books to download
- Cataclysmic Variables spin rates
- Accretion disks
- planet venus???
- Planet Formation
- Age of the sun in "galactic years"
- Mars + 25%
- pulsars and magnetars
- anyone in san francisco willing to help?
- sun's surface density
- Luminosity of M type/Otpe
- Fusion of stars-time
- Super massive black hole
- Spiral Tracer??
- Sudden ceasing of energy generation
- quasars
- Deep into the sun?
- Spectroscopic Binaries
- Accretion disks
- Star formation
- Astrophysics problems
- More quasar questions
- The Largest Structure in the Universe Found
- radius of solar core
- Obscure Questions
- Volume Limited Sample?
- Planemos Doublet Discovered...
- redshift/blueshift question
- Black holes and Light
- Galaxy splitting
- Gravitational Lensing & Light?
- Need Help With The MOND Formula
- approaching to black hole?
- Strange Quarks, Quark Stars, & Black Holes
- radiometry
- measuring in space
- Unequal Gravity
- Distance between planets...
- Planet moons
- Near IR, how do you see lines?
- boson stars
- Black & White Holes
- The Supernova Legacy Survey (SNLS)
- (electron)Degenerate matter
- evaluate the pic : got a black spot in sun
- New Nature Paper: Old Ia Supernovae different?
- Mass of Black Holes?
- Neutron star simulation
- Do galaxies have a negative mass defect?
- Maximum Entropy: Black Hole
- Formation of Dwarf Galaxies
- galactic motion
- Planets in Orbit
- hole through spinning planet
- Effect of dark matter on solar system dynamics
- Quasar energy
- the sun's gravitational pull on the earth
- turbulence pressure in convection zone
- lunar phases?
- heating the surface of Earth
- Missing Helium-3 Found?
- Gravitation in the solar system
- Crab Nebula Spectroscopy
- How can a star turn into a black hole, with the law of conservation of mass?
- Where Does The Hawking Radiation Go?
- thoughts on blackholes
- Some Question About Blackholes
- Does the PA show that DM/DE is dynamically important in the outer solar system?
- maximum gravity boost
- A good way to look at gravity?
- Anti-Matter- Regular Matter- Pulse Collisions?
- What would happen if two black holes collided?
- what day this year
- Theoretical Radial Velocity Curves
- A question...
- Question on Hawking Radiation
- converting parsecs to Mega-parsecs
- Binary pulsars
- WMAP and big crunch...
- temperature and orbital period
- can we hit black hole's surface without dying?
- no Black Holes no Graviton
- Relativistic effects on interior of our sun?
- Dark Matter
- Interesting problem, but hard...
- Cygnus X-1 and Eta Carinae
- Radius of white dwarfs
- Chadrashekar limit
- News Release on Black Hole
- Giant Diamonds
- Gravity affect rotation?
- Starting with Astrophysics
- Random MOND theory / dark matter question(possibly really easy to answer)
- Zeeman effect
- Gravity effect the tilt too
- Book reference required
- Kelvin-Helmholtz instability & quasar jet 3C273
- Center Sun
- Nascent topics.
- Speed of gravity...
- Artificial gravity!
- orbital elements perturbations
- (VLISM) Interstellar medium characteristics
- Hypothetical question
- why is a blackhole a one way ride
- How long does it take
- Two black holes seperated by more than one Schwarzschild radii
- Do the L4 and L5 points travel in a geodesic?
- AGNs, and why there is a torus
- Does Andromeda contain dark matter?
- frame of reference and speed
- Dark matter - maybe just water?
- Radio Waves
- Equation for Solid Planet Structure
- AstroPhysics Simulator?
- That asteroid... where's it going?
- sunshade for the earth?
- How do we really know the universe is expanding?
- If Saturn was a Star!
- EKF for sensors measuring heading.
- Sun's Polar Shift on 2012... coincidence?
- Are hotter stars always brighter?
- An Interesting Problem
- uranium and supernovae explosions
- neutral electron gas in galaxy halo?
- The Earth going through the galactic plane?
- Sunspots
- Tolman surface brightness test -- need help!
- Galaxy Collision
- The Galactic Barrier
- Having trouble with eclipsing binaries.
- Why GRB's?
- how come we can see galaxies 9 B l/y away if universe is only 14 B y/o
- mathematics in nucleosynthesis
- Black hole radius
- unsolved problems in astrophysics.
- science olympiad star question
- Astrophysics Starter
- Are Long GRBs caused by PopIII hypernovae?
- Parker's Spiral Solution
- HII Regions
- How do SNe Ia tell us about the expansion of universe?
- Need a topic...
- What would happen if I were to near and be consumed by a black hole?
- charged particles from our Sun travelling too fast?
- whr did the elecrons come from?
- Astro simulation program problem - program bugs?
- p-process
- accretion discs and black holes
- escape velocity in vecotrs
- Quick Distance Modulus question
- Can you help me understand g's and acceleration for a fictional Star Wars spaceship?
- Space navigation AI problem
- Stellar evolution problem
- Rotational velocity of a planet
- GP-B scoop
- Light and Time!
- Spectroscopic Binary problem.. need help fast..
- Influence of L1 L2 etc
- how to calculate mass from radial velocity? quick question
- Earth's rotational speed when its gravity is 5.0m/s2
- Acceleration, velocity, distance, speed and time help please
- Radiative transfer
- Equinox Tests for MOND
- Effect of Sun movement on Planetary orbits?
- Was Newton in Error?
- redshift anomalies
- Integral points to the fastest spinning neutron star
- Hubbles law and Relativity
- Could Sirius A/B go supernova?
- Help! Visualisation and Stats for a Determinist
- Quick (Most likely simple) Question
- Does blackhole have strong magnetic field??
- Solar Cycle & Explanation for Recent Changes?
- 2-body or more orbit systems?
- How do galaxies form and move?
- Spacetravel possible?
- Moon slingshot powered atmosphere scoop?
- Light Waves at Edge of Universe Question
- Paralell Universes - SA special report
- Where does the energy of gravity come from?
- Saturn's hexagon and his accretion disk jets
- Dark matter
- Could gravity's strength also require denisty as an alternative to MOND
- Can Mars Effect the Asteroid Belt?
- complete shape of the earth
- Polarization of Light
- Roemer and the speed of light
- Prerequsites for galactic astrophysics
- Hexagon on saturn
- hexegon on
- A connection between tornadoes and solar explosions
- origin of radio waves
- If two white-dwarf stars combined together,there will be supernova?which type?---
- If two black holes combind together------
- Question about basic astrophysics
- Hopefully a simple problem
- hypothetical question
- Applying the Virial Theorem to Stellar winds
- MOND-related formula
- Mars's lack of an atmosphere
- Astronomical Spectroscopy Literature Resources
- How can tidal friction on Earth affect the Moon?
- Signal Transmission from Mars to Earth
- help - Calculating the mass or average density of Earth if its radius were 4x larger
- NASA Theory proposal
- Neutron Stars
- Comet orbits
- Black Holes
- Two simple questions regarding black holes
- Could ultra high-energy cosmic rays be the result of matter-antimatter collision?
- More evidence for Dark Matter?
- Does 1a supernova release the same amount of neutrino as type2 supernova?
- wormhole theory
- "suggests an intrinsic VHE power output peak of the source at above 3 TeV"
- What happens when a ray of light hits the boundary of the universe?
- If Gravity travels at c
- Dark Matter you say?
- Habitability of Gliese 581 D
- Nice thumbnail sketch of Earth's future by John Baez
- binary stars equation
- Aaaaaah...Ring of dark matter
- HII Region Temperature Structure
- Shocks
- Singularity one-dimensional?
- Radiis of a star
- 2 bodies
- 'effects' in astrophysics
- Star Collapse Question
- Can MOND be ruled out at laboratory scale?
- Black Holes Don't Exist?
- Earths orbit around the sun
- moon's orbit
- collapsing stars
- Aurora Borealis
- Diameter of the Universe
- 'Spinning' the truth about our own Moon?
- Radius of a black hole
- Simulating the gravitational interaction between two material points
- Need A Help !
- cooling sphere
- Gravitron
- Gravitational Waves
- Just a question
- A white dwarf formed by a supernova, possible?
- Let's try something--let me know if you have difficulty
- Ride a Comet
- Moon gravity
- Rocket escaping Earth's atmosphere..
- Area of light hitting a dome
- Learning Stellar Spectroscopy
- Gravity , Dark energy and Atoms
- supermassive blackholes and galaxy formation.
- Speculation on new laws of physics
- How long would we live without the sun
- Non-rotational neutron stars?
- Does vacuum energy rely on the existence of matter?
- Could a collision cause Venus to rotate prograde?
- The Dead Sun
- Photon Splitting or Merging
- Hawking Radiation
- Question: Mass distribution in galaxies
- Apparent contradiction with orbital mechanics
- Can a planet be 100% liquid?
- have some ideas...looking for feedback
- Tidal Effects of the Moon
- the new ending!!
- Moon fall speed
- Spacetime light
- Absence of Jupiter....
- Orbital Pertubations (Uranus and Neptune)
- Planet/moon rotation
- What would a black dwarf be like?
- Orbital mechanics problem
- specific intensity
- dark matter revealed in video feedback
- request: comet projectory calculating tool
- Neutron star
- Question about black holes
- The spacetime landscape of a black hole
- Help with a problem
- Lunar space elevator....
- cosmic ray and photon collisions
- Strong Extragalactic Radio Burst Poses a Mystery
- Rogue black holes
- Does the Type of vaccum matter?
- what 'pull' the sun?
- Eliptic orbit
- Do supernovae emit gamma rays?
- Orbits: explicit r(t) and theta(t)
- SMC and LMC misunderstood?
- Sputnik Orbit
- Meinel system
- Might A Hot Jupiter Require Another Gas Giant - 3-body Problem?
- What if the moon...
- What is the capacitance of the sun?
- Millisecond pulsar
- Oxegen signature of a planet's atmosphere
- How normal is the sun?
- Very dumb question
- Astrophysics FITS format
- Question on Atomic Principals
- Challenging question
- Can I be a black hole?
- Infinity in the Universe
- Speed of a Gamma Ray Burst
- Limitation to mass of currently forming stars?
- Is light really affected by gravity?
- Numerical Fourieri Analysis of a GRB light curve
- Speed of Gravity
- Sun has a twin!
- Light-gathering abilities?
- Bang RIP, Bang RIP
- recent mass estimates for Milky and the Local Group
- Electromagnetic Radiation
- Hubble Parameter
- Question on Mercury
- Gravitational lensing and Dark matter
- Black holes
- Black hole question
- question on gravitational lensing
- Another black hole question
- A New Planet
- Temperature of the surface of a satellite?
- Artificial stars
- Risk from black holes
- Nariai universes
- Neutrino Telescopes may have nothing to see
- Cause of Quasar Wind
- How many exoplanets with an atmospheric oxygen signature would be necessary?
- How Much difference b2in theoritical and experimental astrophysics?
- Elliptical orbits of planets
- Extrasolar / exosolar planets
- spiral galaxies -
- local star formation rate
- Missing Matter?
- Black Holes and wormholes
- mass fraction?
- Highest Energy Cosmic Rays Linked to Violent Black Holes
- Dark Matter and Dark Energy
- Fission in Sun
- Flux of Solar wind
- Data on galaxies -good references ?
- Weight dependent on planet size and rotation speed?
- wurmholes
- Hill Sphere Derivation?
- Types of supernovae
- Simple Black hole question
- An way to visualize dark matters effects on space-time?
- A paradox ?
- Hill Sphere Question
- Position as function of time - satellite in elliptical orbit (spherical coordinates)
- how big can a body get (size wize) before it collapses onto itslef?
- Duration of AGB
- Astrophysics?
- Luminosity-Metallicity Relations in Spiral Galaxies.
- Big Bang Question
- Particles from Blackhole
- equation for how much an object curves space-time
- worm and black holes
- space time travel theory
- do we know where supermassive black holes come from?
- Speed of light
- Gravitational Expansion & Flat Universe
- The Color of Galaxies
- interstellar extinction
- estimating relative distances for star clusters
- spectrum of flux for a synchrontron source
- temperature of a molecule in a galaxy
- Occultation
- creating oxygen(co2) out Of hydrogen
- Satalite Question:
- Gravitational Expansion -- NOT
- Pop. I object
- Super Mario Galaxy physics
- Detecting Black Hole accretion disc
- Black holes
- Lagrangian points anyone?
- question on black hole
- virtual particles and black holes
- The x-wind origin of chondrules
- Exoplanet Techniques
- Would you agree with notion?
- Tully-Fisher relation : Help !
- Can someone tell me if GP-B has results about GR, one way or the other?
- mass-to-light-ratio and dark matter in galaxy
- Are black holes cold?
- High School Astrophysics?
- nothingness is unstable?
- Thermodynamics and black holes.
- GRBs and Supernova
- Our Galaxy Spin
- Disks and spheres.
- The puzzling presence of DIBs
- centre of mass of universe
- How can you find out the amount of hawking radiation a black hole exhibits?
- what is the average mass a black hole consumes
- what is stefan's constant?
- If i had a black hole of 20 solar masses, how much energy would it radiate?
- Black Hole Temperature and Entropy
- Type of material of black holes
- Kepler's Equation to calculate transfer time
- The end of the universe!
- weins displacement law
- how do i find out how much energy a 20solar M BH would radiate given that...
- Why do gas planets not collapse?
- radio astronomy
- Expanding Universe
- Planetesimal of comet material at Lagrange Points of overlaping 'Ort' clouds?
- Brownian movement in the quantum scale.
- Throwing an object into orbit
- magnetosphere questions
- Gliese 581c/d and their Red Sun?
- Black Hole Tidal Forces
- Supermassive loop holes
- New and Improved: Elliptical Transfer Orbits determination procedure.
- Black holes dilemas
- mirroring sun with parabolic dish
- Virial Theorem
- Galaxy rotation
- Neutron star mass
- What is the fabric of the universe?
- Pulled apart?
- Neutron degeneracy pressure
- A few questions.
- help finding Kip Thorne web course
- my question about string theory
- Exo Planets
- Dark Matter
- Orbit Semimajor Axis and Eccentricity after increasing V
- Extra-galactic Meteror?
- Collision of two Black holes
- Changing velocity
- dimensional analysis on Luminosity
- Crystalline Diamond Maximum Mass...
- Applying Runge-Kutta(RK4) method to planetary velocity
- Dark matter and the Standard Model
- Supernova
- Schwarzschild radius
- Cloud Planet
- Big Rip
- neutron degenerate matter as dark matter
- Intergalactic Gravity
- Dark Matter... ?
- Information in a gamma ray
- The Biggest Black Hole Discovered?
- human in outer space without space suit
- Need A little Help With Optical Depth
- Solar Wind
- Synthetic Black Hole Event Horizon Created in UK Laboratory
- Evidence for dark matter
- orbit anomalies
- Solid hydrogen and astrophysic
- Fun Special Relativity Question
- Equatorial Bulge
- The spectrum of reflected light from a planet question.
- Mass-Radius relation of a Neutron star
- Time dilation
- Gravity as consequence of universe expansion
- how does black hole evaporation end?
- Trajectory of a Test Particle in a Semidetached Binary
- Black Hole Evaporation
- How new stars are borne
- Will two stars of the exact same mass and chemical composition undergo identical...
- The evidence to date
- gravity for a stellar black hole
- monochromatic flux expression?
- Hawkins Paradox
- Mass Function
- HR diagram problem help
- Black Holes
- Particle-Antiparticle pairs
- When Stars Collide
- Could Dark Matter be mass in EM fields?
- antiblackholes
- Quasers
- magnitudes of stars
- Orbits
- Orbital Mechanics Quandary
- Can two planets inhabit the same orbit?
- A question regarding the orbit of material in a galaxy such as ours...
- Just a simple explanation please
- Please Help. Radio Spectroscopy -> Finding the doppler shift in a graph
- Moon preservation
- Event at Aplao, Peru Feb 2nd 2004
- From polar coordinates to heliocentric ecliptic coordinates
- light and blackhole
- Help for High Energy Astrophysics
- Black hole vs. Black hole, who wins?
- black holes, frame dragging and the effect on gravity
- Minimum value of g for blackhole
- Orbital speed of stars within galaxies?
- Stability of the Solar System
- Dark energy @ standard rulers
- Energy output of Sun?
- do blackholes disappear
- Sun mass loss
- accretion disk/black hole/gas jets
- snowplow
- Moon without Earth
- Galactic Rotation Curve?
- Moon "rotation"
- Awesome illustrated map of Apollo landing site
- de Broglie equation and black holes
- Black holes as cold as Inferno?
- rotational kinetic energy
- Hawking radiation & Information loss
- wormhole physics
- outside the universe
- Solar Corona Luminosity
- Rt
- angular momentum of an oblate spheroid
- Σ Black Hole Masses in Universe
- Blackhole temeperature and bigbang
- Gravitationally bound, ionized cloud of hydrogen
- One Question About Black Holes
- Galactic Coriolis Effect
- Negative acceleration....
- Tolman-Oppenheimer-Volkoff equation...
- Dwarph Speroidals (dSphs)
- Ejecta from neutron-star coalescences
- Ultimate source of energy on Io
- Cauchy horizon in a Kerr rotating black hole
- Ligo
- Laws of physics and blackhole
- So you discover the dark matter particle.... Now what?
- Rotational Motion of Celestial Body
- Dark Energy and EM/G unification.
- Mass-Luminosity relationship
- gravity verses electromagnetic attraction
- Why so little neutrinos?
- Baryon Asymmetry
- MOND vs DM
- Artificial gravity
- Spectral index
- WMAP cold spot and void in the universe
- Online books on Astrophysics.
- centripetal forces and gravity
- Metric of a curved sphere
- position of photon sphere
- Confirmation of any water on the moon?
- Magnetism of planets
- Solar system axsis
- From polar to heliocentric ecliptic coordinates
- Number density of earth
- Accelerating Universe,rate Of Acc Data Needed
- Changing mass of the sun
- Black holes and magnetic fields?
- Mass and Traveling at the Speed of Light
- Light
- space-like intervals and the ergoregion
- Black Hole Questions
- Unique Roche limit and Saturn's rings
- Dark Matter and Atoms
- astronomy exercises
- Need quick fact check, please.
- life of gamma ray particle
- gravitational acceleration for a rotating torus
- stellar evolution
- Gaussfit
- Missing matter found in deep space
- Gravity probe B scores F
- Astro phys so short of input
- Can dark matter explain the flyby anomalies?
- convective cores - why?
- conservation of energy
- Superwind phase in stellar evolution
- Solar Inflow events
- low mass stars
- Net Charge of Planets and Stars
- Orbit
- Help with HEALPix
- Pioneer 10 and 11 anomylous acceleration
- Reading my first Astrophys paper
- fermions and spin
- Quantum entanglement and black holes
- Pioneer anomaly
- Earth's interior heat vs Gravity
- Anisotropy of dispersions
- How can black holes even exist?
- Mass of the sun
- Sudbury Neutrino Observatory
- temperature of a electron?
- Expansion of the Universe
- Terraforming Mars
- Vapor Pressure Laws
- Ideas for A Class Project
- White dwarf
- When Will Earth Be Tidelocked To The Sun?
- Radial Velocity Data fitting
- sky in a Galaxy.
- The essence of light.
- Can Black Holes Wobble?
- Derivation of Escape Velocity Inconsistency
- Kruskal-Szekeres coordinates
- Black Holes, how much energy do they give off?
- Blackhole
- Quasars please explain
- Black Hole Shapes
- semimajor axis
- lunar spectrum
- what do I use to determine rotational speed of solar nebula?
- Glast In Orbit!
- What happens when an anitmatter blackhole collides with a matter blackhole?
- gravity and coordinate acceleration
- What if Mars Had Been Closer and Venus Farther?
- Chandresekhar Limit
- Is such an orbit possible?
- Curvature
- How to measure the tangential component of velocity of receding starsor quasars?
- How to measure the tangential component of velocity of receding starsor quasars?
- Keplers Equation
- Empty universe except for three indentical planets
- Blackholes, Jets and Dark Matter.
- Falling time:
- type1a supernovae as evidence for an accelerating universe
- Reconstruction Primordial Fluctuations from Temperature Anisotropy
- Force
- Fitting Highly Non-linear Data
- What is Hanny's Voorwerp?
- What is a sky cut?
- Book
- Kustaanheimo-Stiefel transformation ?
- Perihelion Pass Dates?
- Atmospheric Gamma Ray Interactions
- How much do we know about gravity?
- Collision Behavior in a Gas
- Geosynchronous orbit
- A question about thrust VS mass
- merger of Neutron Stars and Black Holes
- Traversing the milky way galaxy! when???
- P & Pdot
- Big-Bang nucleosynthesis (BBN)
- Black Holes
- A Blackhole Paradox
- Can dark matter be just a cloud of protons?
- why the excess of young stars close to Milky's supermassive BH?
- Dark Matter Halo + Virial theorem Q.
- Pictures from Space
- Pictures from Space
- Question about Jupiter atmosphere
- How constant are constants? - ice skating
- my orbitz problem
- Galaxy rotation and Kepler law
- Central Pressure for a star
- Ruplusive Force or Lost Of Mass
- Improving a Galaxy Generation algorithm
- Paper/Help three body problem
- Spin angular momentum of black hole
- Krypton, Selenium, and Xenon in planetary nebulae
- accelerometer xyz anlges to ra/dec
- Lenticular Galaxy - Formula for Probable Location of Stars
- Radius of a star as a function of wavelength
- SDSS photometry
- Utraviolet Telescope for Blazar Emission Lines?
- Hypothetical question
- What causes space time to come into existence?
- Slower rotation curves at centre
- Stable Planetary Distances?
- orbit in space (extrasolar planets)
- Our solar system is special
- Pliers, pulsars and extreme physics
- Sky map and dark energy
- Deorbiting q, low speed reentry?
- A way to see dark matter annihilation (Pamela: cosmic positrons/antiprotons)
- Hubble+/- 4.3%, is the constant "constant"?
- Rotations of Earth and other Rigid Bodies
- Outer Planet Rings
- Basic question about sun's mass & orbit of planets
- JDEM/Beyond Einstein, is it still alive?
- Gamma ray map of the galaxy completed by NASA
- What is singularity????? [Black Hole ]
- Dark Matter exists!
- Escape velocity in GR
- Basic Question about angle of inclination of a circle
- Gravitational influence???
- Lines
- White Hole Postulation
- orbital question(elliptical vs circular orbit)
- 3 questions on Physical Cosmology
- centimeter continuum emission
- Motion of randomly generated stars
- Dark matter
- The Gravity of Dark Energy
- Black hole matter/antimatter
- Argument against the existence of black holes?
- Collapse calculation (surce code?)
- How do we know how much visible matter exists?
- Asteroseismological Radius Oscillations
- Cepheid spectrum
- Parallax error
- Is dark energy constant to emtpy space??
- Gravitational Wave Astronomy
- Inflation questions
- Earth's magnetism and Sun's temperature
- Einstein Cross/Ring
- Can anything fall into a black hole?
- What is Light?
- Does a Schwartzchild blackhole have a singularity?
- White dwarf accretion
- Experimental tests of GR
- Time coordinate in the rain frame
- Star Colors
- Stable Black hole
- Are we(universe) real
- light travelling through a black whole
- Background radiation and intensity
- Help with basic orbital mechanics
- How fast does the planets move away from the Sun ?
- Center for Exoplanets and Habitable Worlds (news of improved instrumentation)
- Planets of population II stars?
- Simple question about certainty/confidence in astronomy
- Solar Evaporation Time...
- Virial Theorem in Stellar Dynamics
- Andromeda and our galaxy
- solar day and sidereal day
- Abundances for Small Magellanic Cloud
- Astrophysics Help
- Singularity in reference to blackholes and right before the big bang?
- Throwing paper airplane towards space question
- Star with negative pressure???
- 25+ meter telescopes?
- Zeroth Law of Thermodynamics
- static n-body problem
- More about that gamma burst (the brightest ever recorded)
- Galaxy Rotation curve models and mass
- Polytropic Models
- Extrasolar Planets
- Supernova gravitation field and Newton
- birth of black hole
- variational principle & Emden's eqn
- Does Moon have North and South Poles ?
- The great cosmic challenge
- Dipole Moments of the Planets and the sun
- Intensity-wavelength graph for emission spectra; why is frequency in the x-axis?
- Spectra Y-axis
- Galactic Clusters and Warm-Hot Interstellar Media
- Short questions about dark matter
- Big Bang starting Mass (mater/antimatter)
- Deuturium Fusion mass limit
- If the gravitation has very very tiny deviation from inverse square law!
- Black Hole Binding Energy Radiation
- Why do the Sun's/star's luminosity increase during the main sequence?
- Gravitation vs Magnetic and Electric Field
- How does the creation of virtual particles allow the universe to accelerate?
- White Dwarf Cooling Questions
- AASTeX Simple Question
- How does Earth sustain its Mag Field?
- moon flight
- Why Dark Matter and Dark Energy?
- Coldness of Space
- Eccentricity & GR precession; Mercury vs. GPB
- why is the temperature distribution of hot gases inside galaxies evidence for dark ma
- Coronal heating problem
- Dark Matter Possibly Detected
- Elliptical orbit around the Sun
- what is cross identification
- photons and black holes
- Hawking Raditation and particle-antiparticle pairs
- Age and metallicity of Population I stars?
- death of a black hole
- Olbers' Paradox, the CMB and the observable universe
- Kepler's 3rd law to determine mass of jupiter
- Black hole singularities and negative space-time
- Proto-Earth was ~230 Earth Masses
- Nilssen's Law of Stars
- Nilssen's Law of Rocky Worlds
- What Life would see around other Stars
- GC on Pioner Veuns probes
- Confusion regarding jargon in journals
- Dark Matter in the solar system.
- Charge of blackole
- Origin of suspected black hole in Omega Centauri
- Happy with the Solar Model?
- existence of a small planet (theoretically)
- Stars, Ozone, & Evolution of Complex Life
- Estimating Planetary Cooling Times
- Baryon asymmetry and conservation of charge
- Moon's Orbit
- Hagedorn Temperature?
- Tidal force in the sci-fi book "The Integral Trees"
- what is so special with 10^9
- New Light on Dark Energy
- Moon's Tidal Forces puff up Earth
- The Tip of the RGB as a Standard Candle
- Energy in Universe
- How does the 'atmosphere' of the sun affect ligth from stars passing behind it.
- why would large quantities of dark matter not stick together ?
- Dark matter
- How large would a moon impact event have to be to affect the Earth?
- Galactic cosmic rays and our world.
- Advanced Thin Ionization Calorimeter - DM Confirmation?
- An uneducated question regarding black holes, gravity and the formation of planets
- Dark matter or just unobservable?
- explaining blackholes dark matter ?
- Fabulous projects for the study of dark matter and dark energy
- Exoplanet terrestrials: fact or fiction?
- Electric field of the Sun
- Earth's formation & Late Heavy Bombardment
- Blackhole formation
- Higgs Boson and Hawking Radiation
- Quasars: A Different Perspective?
- Existance of Dark matter...
- Redshift Quantization?
- Black Holes and Dark Mattter
- Planets' Magnetic Moments ??
- Correcting for sun diameter and refraction in sunrise/sunset equations
- Young galaxy's magnetism surprises astronomers
- Jets Big and Small
- Rotational increase of planetary body: less or more gravity: centrif. vs. Mass incr?
- Recent research relevant to quasar evolution
- Energy required to "fracture" a planetary mass
- Cold dark matter searches
- Deriving radial velocity as observed from infinity
- Galactic distance equation
- Source of synchotron radiation causing galactic background noise
- Help on tidally locked planets
- physical forces of a space collision
- Idea: Dark Matter - Supergas
- 1D spectra vs 2D spectra
- Fermi-Dirac statisitcs
- Distance between earch and the echo of the Tycho Supernova
- stone falling from moon's orbit
- Ploting H & p against time from Big Bang
- Singularity - Black Hole or Naked
- Rotating transparent object with stars - what was it?
- Magnetic Reconnection vs Double Layers
- gravitational pull of a black hole
- Convection in planets and stars
- PI conference: Black Holes and Quantum Physics
- Help with Escape Velocity Problem
- Changing the rotation of a natural satellite
- how to measure the rotation period of the moon?
- Impossible to graph position vs time?
- How many stars in the Solar neighbourhood
- Thought Experiment
- Dark Matter/Dark Energy/unified constant? I need answers!
- When did H2O develop during the last 13.5 b y?
- Black hole question
- Bias
- time of baryon asymmetry
- question about orbit determination with find_orb
- ooze in space?
- IB extended essay in Astrophysics
- Time Scale problem
- Another Crackpot Theory: Neutrinos
- Estimating the effective grammage of the galaxy
- Redshift Energy Conservation
- if there is something infinitely massive(a black hole) is it possible to have somethi
- Schwarzschild’s equations & Newtonian Potential
- Literature on Black Hole Pair Production (?)
- Ages of starts from CMD
- How will the water surface of this planet looks like ?
- Unsolved problems in astrophysics
- May 10-12 1999 The Day the Solar Wind Disappeared
- Solar Wind
- Friction in space as approaching light speed
- Friction necessary for planet formation?
- shape of orbits
- Observing antiquark annihilation
- Is the sun anchored?
- Confused about monochromatic flux
- Wormholes for Dummies Question.....
- Black Hole Question
- Astrophysicist Jobs
- Sun's Corona Paradox
- Universe Expansion Question
- Question about black holes
- Black Holes and Optics
- Question about the edge of the Universe
- wanted to know
- Sir Author Eddington and Einstein's GTR
- Black Holes have no gravity below the event horizon? - How can that be?
- Are Blackholes?
- What would happen to Earth's orbit if it increased in mass or lost velocity?
- Why white holes don't exist
- FARR- Fuzzy Astrophysics Research Resources
- Transit Method to find extrasolar planets.
- Equation to find the speed of a distant star
- Space Expansion and Light question...
- Planetary gravity?
- How space time affects apple?
- Neptune distance from sun
- Getting inside a black hole
- calculating the luminosity density of the universe
- Outside the Universe
- Mass & Energy Of Universe
- Could the Big Bang Have Been A Cyclical Event?
- concave mirror telescope
- Gas/dust cloud physics.
- Black Hole questions
- Age and size of the universe
- About heavy elements of the solar system
- Can counter-planets work?
- Flyby anomaly trajectories
- Escaping from a black hole
- Black hole vs. entanglement
- Images of BH mergers
- Can you help me?
- Stellar orbits around the milky way.
- What is the heaviest element that a supernova can produce?
- Space where General Reletivity Resides
- center of a black hole.
- Why doesn't iron give off any energy when it is created through nuclear fusion?
- Do general physicists and astronomers have different opinions on unipolar induction?
- Solution help for the Geodesic Equation
- Apophis 2036?
- Is 34% "far" or "slightly" smaller than 100%?
- How far can we see?
- How is the energy transfered back to the Moon
- Planets and angular momentum
- Schwarzchild Metric Model
- Emitted radiation and absorbed solar radiation
- Black Hole and Wormhole Trouble
- Creating a star
- Telescopes: Magnifiers or Time Machines?
- How do Black holes radiate energy?
- s-process and r-process
- Are Black Holes Theoretical Phantoms?
- Need help with spectra
- What is Causing The Universal Expansion?
- Telescopes/Interferometers
- Initial Mass Function
- lend a hand (help on orbits)
- Questions about black holes for a fictional story...
- Solar Neutrino Question
- hohmann equation help
- Getting vectors out of JPL Horizons
- Past the speed of light
- Collisional model of asteroids and their debris
- What would we need for a warp drive?
- Could spacetime be flat?
- What density does something have to have to be considered a black hole?
- How accurate is accurate?
- What stops a star from fusing all its fuel at once?
- binary stars
- Matlab 2-D Simulation for TLI (Trans Lunar Injection) "Basic Orbital Mechanics"
- Can anyone explain the need for elipses?
- What do you think about the Cosmic String theory?
- Age of the sun+age of previous stars = universe ?
- Is spacetime the surface of a 5 dimensional ball.
- Curvature of space, universe
- Plotting Orbits
- Blackhole article on cnn
- 13 billion year old GRB
- No boundary proposal and imaginary time.
- what is the shape of the universe?
- Expanding light
- Wormholes and time travel - Problem
- anisotropy in the cmb
- Why black holes do not have color charge?
- Press-Schechter formalism
- Using parallax and magnitudes.
- Black holes bending light
- How much lighter do I weigh at noon than I do at dawn?
- star expansion
- Another black hole thread........
- How do we know/guess that there's a supermassive black hole at centers of galaxies?
- Effective weight of a star's layers
- Glowing phenomena
- Relativistic Jets
- Size of the Universe
- Evolution of low-mass stars
- Gravity-assist by Sun?
- black holes, white holes, and time
- Looking Back in Time
- Expanding Universe & Red Shift
- The maximum mass of white dwarf star
- parameter on which sunspots depends
- Size limit of Comets
- Alien Maps of an Ocean-Bearing World
- Superluminal jets
- Observing a blue shift
- Distance analogy - am I being accurate?
- Algerbra in Astrophysics
- Parallax
- derive flight path angle from orbital elements
- high redshift + expansion
- Future,time,space and light
- Proof of the curvature of space-time?
- Determining the individual magnitudes of two stars
- Light beam in a flat universe
- Accelerating galaxies???
- Solar Wind's Effect on other Planets
- Very confused about black holes!
- Conservation of energy.
- Superluminal jets
- Relativic black hole question
- M87 Blackhole
- Link White hole and our Universe
- does time dilation cause redshift?
- Large Gas Cloud near Aquila Rift in Milky Way
- What is frequency of a gamma ray emitted from a supernova
- Gravitatonal lensing
- The Alternate Big Bang Theory
- Yahoo: Earth-Venus smash-up possible in 3.5 billion years: study
- Quasars and Antimatter
- potential energy of a particle within a dark matter halo
- Solar Cycle 24, Solar Observational Anomalies
- Orbits of Meteors
- energy from space?
- big bang and black holes?
- Big Bang, Gravity Split
- mission to mars
- Thor's Helmet
- why does the sun travel faster about its equator?
- why does the sun have non uniform distribution of magnetic fields?
- Is this interpretation on "Hubble's Law/Constant" right ?
- Thoughts on dark matter
- potential energy of a collapsar
- Help sought - data on intergalactic distances
- particle physics when light wave expands infinitely
- The noise in the universe.
- How did Jonathan Swift predict mars moon speeds?
- Three-Body Problem
- Equations on a road trip
- Graviton scatter.
- Elliptical Orbits and Focus
- Earth Atmospheric Absorption Lines
- Difference between Thermal and Kinetic Energy
- Can Centripetal Force create Gravity?
- Logarithmic Galactic Potential
- Temperature of the universe
- Keplerian scattering through an array of mass lumps
- Vacuum Energy - Pair Production Confusion
- help with plasma
- Why don't stars in a cluster clump?
- Dark matter/energy
- How unlikely is the formation of an earth size planet made of Uranium?
- How fast do I have to go to get away from an explosion in space
- Gamma ray from a black hole
- interesting astro/phys question I'd like the naswer to..
- Dark Matter/Dark Energy
- RR Lyrae "hole" in the colour-magnitude diagram
- Can a primitive galaxy nova or supernova?
- What is gravity
- Giving mars a magnetic field?
- Simple Gravity Question
- Can Relativity explain Dark Matter?
- Fast Gravity Slow W+ W- Z0
- Where do neutrinos go?
- Red Giant Tip
- is the moon is moving away from us?....or is the universe just expanding?
- Escape Velocity and Earth's Gravity
- Question about suns and the sky
- Expanding Universe Question
- Hawking radiation ?
- The gravitational binding energy of the Milky Way?
- Magnetic Field of the Sun will Flip
- Maximum density within a planet
- Betelgeuse will go supernova??
- How to find the position of a star in the sky
- how likely is a super solar flare?
- Matter, anti-matter, and singularities
- Chemical composition of the sun
- Question on black holes
- Proof of planetesimals for asteroid belt?
- Looking for an answer to this:
- speed of light in a blackhole
- Stellar extinction
- How do space telescopes work???
- Neutron stars and blue/red shifting
- Difference between a red/blue shifted object and one in rest.
- Is the moon closer or further away to us than predicted by Newton
- Light slow downs during long journeys?
- Cooling of Neutron Stars and Urca-process
- Solar storms and electronics
- Units for planetary orbits?
- Spacetube
- The Big Crunch
- Black holes and dark energy.
- Are galaxies of antimatter identifiable?
- Spectra Classification
- How does the event horizon of a Schwarzchild black hole nucleate and develop?
- Redshift / Expanding Universe
- Black holes
- Least massive earth like planet possible in the habitable zone?
- Blast Waves and Scaling Relations
- What is dark matter?
- black hole why not black ball?
- Extended or point source?
- newtons universal constant
- Accreting brown dwarfs
- Orbital Effects of a Significant Mass Increase
- Finding the Speed of Light
- Dark Energy, Expansion, and Acceleration.
- Black Holes & White Holes
- The expansion of the universe
- Moon-Earth distances and interactions
- The WASP-18b mystery
- Another expanding universe question...
- The Moon's orbital plane
- Hey everyone.
- Time-travel Viewer
- Question of Galactic Proportions!
- The limit of "Ultramassive" Black Holes.
- The suns rotation
- planetary orbits
- Question on neutrino emission machanism in neutron star
- The expanding universe isn't in our neighborhood
- Computing Atmospheric Trajectory of Meteor
- Shapiro Effect
- How do we determinate the mass of stars
- Black holes and theories of gravity
- Q: Galaxy Rotation Curve
- Surface gravity of Mu Arae-c?
- Orbit velocity question
- neutron star collapse can produce GBBs?
- Coalescent of two white dwarfs
- What exactly does radio luminosity mean?
- CMB Cosmic Microwave Background
- What Do I Observe Moving Around in Curved Space
- Disconnected universes?!
- other planets interaction on Earth-Moon System
- What makes GRBs--good talk by Quataert
- The Age of the Stars
- Does expansion exist on the micro level as well as the galactic level?
- Is a change in gravity felt instantaneously on the other "side" of the universe?
- Hubble and the Law of Redshifts
- Distant Galaxies - observation methods
- Could gravitational waves form interference patterns?
- Dark Matter Question
- Variation of gravity along latitude
- spinning and rotation of planets
- Question about Black Holes.
- Core temperature of stars
- CFD in Astrophysics ?
- Theoretical Application For Acceleration In Space
- stars
- Advice needed for Game scenario
- second law of thermodynamics and black holes ?!!
- Tilt Model of the Earth
- the Reissner-Nordstrom metric...
- Hypothetical space station orbiting inside a plasma torus
- Need Science Fair Ideas
- Does Doppler effect change the energy of emitted light?
- Sea Level basis
- galaxy cluster mass profiles
- Stuff I always wondered about astrophysics
- black holes collide
- Ellipticals vs. spirals colliding
- Strong Equivalence Principle
- Earth and the Itokawa asteroid
- How large does a BH has to be in order to swallow our universe in its current status?
- Q: About the relations bitween the inflation and matter's properties
- Seeing Pluto
- what type of athmosphere would a planet with red and pink trees have
- What causes mass attraction?
- Black Holes NOT Science?
- mass-luminosity relation problem
- Dark matter
- Bertrand's Theorem
- help with black holes!
- Age vs. Size of universe.
- I need to shield Earth's Gravitational force.
- Stability of Lagarrange points
- About Complete relativity.
- Jets from Black Holes - do they carry momentum?
- A god switchs off the nuclear fires in our sun tonight, do I have to worry?
- Energy and momentum flux in the sun and Newton's 3rd law.
- Easy IDL/Healpix Question
- Lyman alpha forest different for different objects?
- Resolution of optical binaries
- Mapping Underground Caves/Tunnels on the Moon/Mars
- Antimatter Catalysed Engine
- main sequence lifetime problem
- Killing surface gravity for a Kerr black hole
- space.com says intergalactic hydrogen gas absorbs all optical light
- Help with Spectroscopy in Astronomy
- what are your predictions
- What is the universe expanding into?
- Rotation of planets
- Elliptical orbits and focal points
- How would you see an Event horizon?
- Space ships and manoeuvrability
- gravity value on neutron stars
- Orbital Mechanics help
- Absence of dust on moon and material sciences
- Torque acting on Satellite, why isn't omega increasing???
- quantum mechanics and black holes
- Olbers' Paradox
- The Protective Cocoon of the Solar System - Implications for Optical/RA Obervation
- Inverse relationship - neutron flux density with sunspot cycle
- A theory and questions about physics/astro and quantum.
- Weightlessness
- Nuetron star collapses to B.H., a final plunge of matter and energy?
- Lag time and star creation
- How to much mass does it take to change Neptune's Orbit?
- Centripetal Space Stations
- Restructuring of the solar system theory
- Calculation of orbital speed for given eccentricity
- Gravitation due to acceleration
- Stellar Evolution
- How Does Gravity Propagate Backwards in Time?
- A non-technical explanation for "FTL" quasar motions
- What happens in a black hole?
- Kepler orbits
- polytrope eq. P = K(rho)^(1=1/n) valid for real gas?
- Hydrostatic Equilibrium in General Relativity
- Different colored skies based on star's spectral type and atmospheric conditions
- strength of magnetic fields
- Jupiter's Equatorial Rotation Period
- We truly are the stuff of stars ... and stellar nurseries and supernovas and stars a
- star light from a dead star ?
- Chemical composition of solar system
- worm holes by Einstein
- mass loss through gravitational radiation
- Seeking Information on the R-process
- travelling to the other world by sending data
- how to scan the frequency at atmosphere by using PIC
- what radiation can be detected at 1km high from Earth surface?
- Schwarzschild and Reissner–Nordström metrics...
- Orbits of star in the Galaxy
- Hypothetical Planets Question?
- Two Moons? What would happen?
- satellite using rung-kutta method for 4DOF or 6DOF simulation
- Faster than Light Travel
- Faster than Light Travel Side Effects
- Supemassive Black Holes
- gravity
- Expansion of Space
- quaternion conversion in satellite attitude using sun-earth sensors simulation
- The light from a star
- Dark Matter
- Titius law
- Nucleosynthesis and light curve of Supernovae Ia
- big bang question
- Coalescing Supermassive Black Holes
- voyager and Newton
- Black hole escape
- Star Masses and Radius
- Rotation Curve of Galaxies
- signifance of equinox for orbiting satellite
- What causes orbit speed
- Galaxies velocity - I'm puzzled
- Black Hole Merging
- Energy required to the Moons orbit
- Can the sun be blueshifted due to Earth's rotation?
- CFD in Astrophysics, ideas for a senior project
- Does the sun have angular momentum?
- Is a Dark matter just a matter?
- Orbital energy of ellipse and hyperbolic trajectory
- searching university
- One question about Parabolic and Hyperbolic trajectory.
- Space Travel
- Binary star system
- Gravitational Binding Energy
- Black Holes vs. Dark Matter
- H-R diagrams (B-V)
- Hawking radiation
- AGN comparisons
- Are the planets where we expect them to be
- Dark matter discoverd? link inside
- Transmission Bandwith though space
- Cephid Variables
- Is what you see what you get?
- Orbit of the planet Pluto
- Mars moon & satellite orbits problem
- Velocity at Perihelion
- Use of the Barometer equation
- cosmological constant or dark energy or vaccum denisty/energy/energy density
- Mercury's Orbital Precession Anomaly
- Kinetic Energy of a Planet
- Confused about the event horizon
- Bullet Cluster
- Question about expanding universe VS gravity pull.
- Aitoff all sky flux maps
- Vacuum energy
- Does the moon cause the flux and reflux of the tides?
- how did universe start to expand
- diffraction of moon
- Can anything capture a black hole?
- Cellular phones and reverse SETI
- Energy, blackholes and whiteholes
- Size of universe
- Measuring dark matter's repulsive force
- Nearby supernova risk discussed by Sigurdsson
- artificial gravity
- magnetic diffusivity : significance?
- The Rugby Ball
- T Pyxidis: fuse lit?
- Black hole of dark matter
- Does parallel universe exists ??
- Spiral Galaxies
- Some Black Hole Questions
- Rotation curve for Galaxies
- Singularities, dark matter, and dark energy. A connection?
- question: what exactly is a singularity?
- using stars random distribution to determine presence of gravity
- Dark Matter - spin=?
- black holes again
- Formation of a black hole
- The Speed of light vs a stick?
- Mass of star as function of Luminosity, Temperature and size
- light speed and gravitational matrix
- age of the universe
- Three-Body Problem Problem ("Astronomers")
- General Relativity and galactic rotational speeds
- Gravitational lensing angle equation
- Supernovae winds shape small galaxies (computer sim animation by Governato et al.)
- Faster than light-pulsar
- Math/Astrophysics Project Ideas
- photon energy in redshift
- inflation theory
- star generatations making elements
- Earth-Sun Vector, Ecliptic to Equatorial Coordinates
- Energy to completely ionize gas in star
- Star populations by spectral classes and masses
- Perceiving the expansion of the universe in daily life
- Bolometric Magnitude and H-R diagram
- Violation of conservation of energy by expansion of the universe
- Rayleigh-Jeans approxomation
- questions about time travel
- wormhole question
- Quick blackhole question
- gravitational waves and quantum physics
- access times to a satellite by a gorund station
- helicity
- If the sun expands?
- Life on Titan?
- Yet another Blackhole question
- Book about polarized light and ISM?
- space-time fabric distortion measuring
- Electron degeneracy pressure
- Hydrostatic Equilibrium in General Relativity
- Matter/Anti matter
- Is space, time and energy linked?
- food for thought, is law of inertia wrong..hum
- will we go the the past if we could go faster than speed of light?
- Distances to Galaxies
- rotating black hole?
- Black holes and stars
- Clarification about gravity and floating in space
- magnetic fields on the Sun
- Are any Cosmic Rays antimatter
- Why Even Talk About Gravitons Even Existing?
- Extended structure of dark matter
- graphs of galaxy rotation curves?
- asymptote of expected rotation curve velocities
- Reversing a black hole
- calculating strength gravity over light years
- State of knowledge of dark matter distribution vs Fermi Paradox:Zoo
- The temperture of the universe
- how did the cosmos form w/o observers around?
- Calculating viewing times of satellite from groundstation
- Relative Orbital Physics
- A question about the universe from a non-physicist?
- Hawking Radiation
- Nagging Doubts...just won't go away..(song)
- black hole evaporation
- learning astrophysics
- Why do "black bodies" emit light at all wavelengths when heated?
- So what happen to a shuttle that enters a black hole?
- dark matter particles
- Expansion algorithm?
- a solar model...
- Gravity
- Light escaping Black Holes
- Calculating the Bond Albedo
- Can we see the Earth in the past
- space dirigibles
- The True Nature of Hawking Radiation
- Converting units for Mass Estimates of Astronomical bodies
- causal entropic principle / entropic principle
- Line-driven winds?
- What is Dark Matter?
- absolute color - magnitude diagram
- Solar system motions
- 600 Million Tonnes of Water Ice Found on the Moon
- Process of interpreting experimental data
- Determine wether A is orbiting B
- Moon Mass Concentrations
- sources of noise in geostationary satellite attitude determination simulation
- Pair-Instability SN
- effects of moon on prehistoric earth
- Black holes and photons ?
- Schwarzlöcher (Black Holes)
- visualizing photon spread
- Heating a black hole
- astronomy and astrophysics, are they the same?
- reference book about astrophysics please
- Primordial star formation
- Basic Question about space-time
- if the strength of gravity levels off, could black holes be unphysical?
- Looking for online solar astronomy book/course
- interior metric solution...
- Stellar Remnants
- Stellar Pancaking, anyone familiar with it?
- geostationary orbit propagator
- Geostationary Orbital Mechanics Reference Materials
- forces in supernovae
- Accretion Disk simulation
- Filming light
- New
- Help with article
- Three Questions About Energy-Mass Equivalence
- How do vortices help astronomical structures to form?
- Cold dark matter
- Some black holes may actually be "Quark Stars"
- Could Dark Energy be Dark Matter cooling?
- Space pushing on matter
- Three Body Problem - Earth, Sun, and Moon
- life on moon rather than planet
- Kepler Orbit
- Densities of particulates in a carbon star's stellar wind?
- Query - could a comet impact create a wormhole?
- Light
- Jupiter's pressure and temperature profile
- Supermassive Blackholes
- Magnetic Field of the Solar Wind
- Red and Blue shift
- Graviton Link to Dark Matter?
- Orbit around the Galactic Center
- mathematica in astro
- Cosmological constant
- Dark Matter, Dark Energy, Dark Flow... ohh...
- H-alpha and galaxy count
- Supernova Remnant Help!!
- PCA Tomography
- Oh NO the COSMIC WAVE IS COMING!
- Is MOND necessary?
- How to calculate Helium lensing
- Gravitational distortion of black holes
- would the event horizon move?
- Wormhole question
- Expansion of Universe And Its Influence on Earth Orbit
- A Journey into a Black Hole...
- Harnessing energy
- Extrasolar super-Earth discovered...
- Event horizons
- atmosphere and gravity
- Sun's gravitational force
- drake equation
- Random Question
- Lost energy of red shifted photons
- Orbiting a BH
- Quasars Don't Redshift - Why?
- Stany asked about LHC BH creation
- fabric of space time
- What is the size of a black hole?
- Confused
- Physics of creating a "deliver-to-Earth-in-future" signal
- Chaotic Inflammatory Theory
- Possible stupid question..
- Redshifts
- Thermal output of earth
- Pulsar cooling rate
- Big Crunch. What happens at the moment the universe changes direction?
- Potential double planet system
- A few different questions and concepts
- Hohmann Transfer: Maximum Radii Ratio
- How does one describe the energy of space to the public?
- Redshifted light from another planet
- Question about proton decay and black hole evaporation
- Need Help, trying to get a grasp about the universe.
- Radio Noise from the Milky Way
- Image at an Event Horizon
- Singularity and Anti singularity
- Computing Meteor Trajectory from Data for Two Stations?
- How does a Black Hole work?
- Black hole/Hawking radiation thought experiment
- Galaxies drifting apart
- a strange informataion ! is ot realy
- Central velocity dispersion vs rotation cuves for estimating galactic mass
- New_Stars_being_formed
- Photon energy & Energy lost
- Observable boundary
- Superluminal_motion
- Faster than the speed of light?
- Jupiter-sized Planet Lurking in Oort Cloud?
- Are there any good colleges in Florida with Astrophysic programs?!?
- Couple of questions about black holes and event horizons
- Angular size-redshft relation
- Apparent superluminal velocity in M82 source
- Gamma Ray Burst hits the sun.
- High school research suggestions
- gravity vs centrafugal force
- SMB Feeding Problem Dark Matter Problems
- Black Holes emitting jets of gas?
- How does the velocity of light change in the vicinity of a black hole?
- MECO Vs Hairless Black Hole
- weigh on sun than on earth
- What is and is not Mainstream Astrophysics?
- What will the universe *look* like in 15 billion years from now ?
- Request permission to discuss Schild's papers
- Do sattelites orbit with the rotation of the earth?
- State of Pulsar Theory & Observations
- wormholes through wormholes
- Why light curves around objects of mass. 3 answers. 3 questions.
- wormhole generator?
- Distortion of the stellar sky by a Schwarzschild black hole...
- Balmer discontinuity
- Limit to Expansion of the Universe
- How Does Gravitational Time Dilation Work?
- What is the energy that moon got on us?
- Is it true that gravitation on the full moon day is less than other days?
- Angular distriubution of muon flux
- Massive star end.
- curvature of space and dark matter
- Quark Degeneracy? String Degeneracy? (and the effect on Black Holes)
- Using a black hole as a weapon
- Distunguishing matter/antimatter black holes
- Are galaxies losing mass or gaining density or both?
- Dark Matter, On the Ropes?
- Merging event of galaxies
- Newtonian mechanics & Oort Cloud Shell
- Dark Fluid: serious MOND-like theory unifying DM-DE or crackpottery?
- parallax method
- a question about the earth
- expansion of the universe
- Active Galatic Nuclei
- Does the redshift effect contribute to gravitational attraction?
- Why do neutron stars suck the gas from their companions?
- Does Newly Discovered Supernova Point to Unknown Laws of Physics?
- Any gamma ray bursts of doom?
- hypernovas
- Energy of the planets
- For anyone who does not beleive in black holes, we what happens to neutron stars then
- Can the Sun be treated as a black body radiator?
- Latest on black hole infromation paradox?
- Why did the universe cool down?
- LCROSS/LRO and Their Effect on the Moon
- how does hyperinflation work?
- Formation of the Sun
- Looking for interest in Carrol & Ostlie study group
- A question on Dark matter
- Besides the bigbang, are there other published theories about cosmic microwave
- Why do the planets closest to the sun move at a greater velocity in their orbits?
- do all planets have magnetospheres?
- Neutrino Astronomy
- Time required to form a black hole
- What is there actually to say of wormholes at the moment?
- Retrograde black holes
- Are the planets where we belive these to be
- How does the three-body system (Earth, moon, Sun) work?
- Mass of Average Lenticular Galaxy?
- a question on Black Holes
- Decelerating satellite
- Derivation of Hawking Radiation
- Rotation of the Earth
- Do we see the future through telescopes? or the past?
- 1/0=Infinity?
- Waves & wavelengths
- Mass & emittance
- Tides, rotations and spins
- What if all Dark Matter searches like CDMS II remain negative?
- Laser interferometry and the search for gravitational waves
- BOINC software
- In Retrospect: If ColdWar-to-HotWar Had Happened....?
- Was Gravity turned off during inflation?
- Speed of light and position
- Anomalous Quasar Observations 200k Light Year Jet? And So On.
- Gravitational time dilation?
- Observational astrophysics reference for math/physics major
- Entering A Black hole
- Error in CMB Interpretation? Implications?
- Do massive objects in space act as gyroscopes?
- Are black holes a point of singularity?
- Does the uncertainty principle mean that black hole has to become a big bang?
- LIGO Experiment Screensaver
- If Earth had too much mass?
- Black holes
- Twin Planets! (can two planets share a barycenter and rotate around the same star?)
- You could get to the speed of light. If you could synthesise gravity
- Does gravity have speed ?
- Maximum orbital acceleration
- Why do Meteorites burn up?
- How fast are the projectiles from a supernova?
- Bl Lacs/Radio Galaxies
- Question about falling bodies in orbit and acceleration
- Spin of the planets
- What Produces Gravity??
- The Suns Magnetic Pole
- Hubble Telescope & Pluto
- Acceleration Due to Gravity
- why artificial gravity is not possible?
- Constant acceleration using sustained nuclear chain reaction in space,Is it possible?
- Accelerated expansion and lightcurves
- How does the space station survive the damages caused by debris in space?
- Black Hole vs. Anti-Black Hole
- Orbital transfers and escape velocity: relationship
- Could a planet ever be split into two halves?
- How much starlight is there?
- Find radial velocity of star from orbiting body
- Neutron Star vs. Earth
- Disappearing Sunspots, Minus 50 Gauss/yr
- photometric data from SDSS fits files
- Estimating Exoplanet Temperatures
- Some questions.
- Bright source radiating
- Hubbles Vs. Dark energy
- Calculating distance using absolute and apparent visual magnitudes
- Problem with a Sim
- BH information lose
- eternal universe vs finite life of stars
- Dark Matter / Dark Energy
- what does light emitted by quasar convey?
- life and death of stars
- the force of dark energy
- Black Hole Jet Emissions
- How is information conserved in a black hole?
- Orbital Velocity Question
- Speed of light in intergalactic space
- Dark matter?
- Inflation
- Newtonian Dark Energy
- Core drop
- Black hole ?
- limit = C why?
- How much dark matter is in the Sun, and does it have any
- Dwarf stars
- Is it possible to use a black hole as a mirror to the past ?
- Elements on Earth
- Black hole plus charge
- Dogunut Star
- Gravitational potential energy
- Variable scattering frequency based on bulk plasma flow?
- Unstable Elliptical Orbit
- Determining the radius of a star
- Forces on a Near-Earth Object
- rotating planets and magnetic fields
- Our Multistar System?
- Do stars actually exist beyond our solar system?
- Playing with Coordinate Systems (Spherical Geometry)
- Water Launched Space Vehicle
- Blow up a black hole by filling it with electrons?
- Need help understanding Collapsed Configurations of stellar Mass
- Question: what is the resistance forming spiral galaxies?
- Eddy currents due t into the core of the Earth
- Big Bang Temperature
- Velocities of earth's atmosphere, exosphere etc
- Diameter of star clusters
- Dark matter, is it composed of....
- Gravitational Constant.
- Gravitation on planets!
- friedmann's equations
- Dark Matter
- Interesting thought about black holes..
- Massless matter
- How do S0 galaxies form?
- Journal papers on dark matter?
- Accelerated Expansion of Space question!
- Very simple question on detection significance
- How to determine the total energy in the universe
- Astrophysics from a Boobie or a black climate control.
- Basic Question about Star Formation
- Is cosmic back ground radiation able to somehow not dissapate?
- is big bang still going on?
- white holes
- black holes (didnt know where to put this question..)
- spherical distance computation
- Relativistic Effects on our Observations of the Universe
- Visualizing a Black Hole
- What the hell is a Johnson V Magnitude????
- Hawking radiation problem.
- best review paper on the observational status of black holes?
- Supernovae and Hypernovae.
- Black hole size vs. neutron star size
- CBR photon density at equilibrium temperature...
- Hill Sphere Explanation
- Compton scattering in relativistic flow
- Precisely or astronomical observation of Schulze and Taylor.
- astrophysics
- Luminosity of the Sun
- Lunar gravity assist en route to Mars
- Planck density
- Space Shuttles
- Black Hole Hawking Radiation & Uncertainty Principle... what range of photon energies
- Amount of iron in the solar system
- Gravitational effects of planets on each other
- Distribution of stars in spiral galaxies
- Quasars - how do they emerge from black holes?
- GR Dust Cloud
- black holes and time
- Astronomical software for BCE Thuban era
- Black holes and the accelerating expansion of the Universe
- looking for data on the orbit of S2 star
- Energy change in planets
- Another redshift question
- Seeing the Big Bang
- Super Novae and emission of electromagnetic waves and gravitation wavefronts
- Maximum mass of planets.
- Binary system question
- Wormholes expeling particles at superluminal speeds
- The expanding universe and the conservation of energy
- The black hole isn't actually a hole
- Lunar silica
- Is gravity an instant-force?
- Triple alpha reaction
- Can a black hole be magnetic?
- Bifurcated Asteroid - Centrifugal force
- A different point of view about this Zeldovich-Starobinsky-Bekenstein-Hawking stuff
- dark energy vs dark matter
- How does information leak out of a black hole ????
- Black Holes containg a Universe.
- Lagrange Points, Maximum mass and their effects
- Deriving Vr and V(sub-theta) from Kepler's second law and....
- If our sun were blue
- Must a black hole be a point singularity?
- how much dark matter in each galaxy? Is it related to age?
- New to astrophysics, don't have a good physics foundation, need some help!
- interstellar propulsion systems
- Speed of light and big bang
- State of matter before a black hole is formed.
- Argument against Dark Matter - please enjoy yourself for a moment...
- Black hole gravitational question
- how is our speed (~605km/s) derived from the CMB dipole anisotropy?
- Panspermia question
- What are the limits of interstellar travel?
- exoplanets..
- degeneracy pressure and interactions
- Looking For Project Topic
- Pressure in stars from photons vs. electron/positron pairs
- Universal time
- subatomic particle and space curvature
- What is the energy of the galactic magnetic field? (E/c^2)
- negative pressure and dark energy
- The infinite possobilities presented by the infinite amount of probabilities
- Astrophysics hot topics !
- Earths Rotation
- Strange wikipedia entry about the sun's core
- "Symphonies of Planets" - Underlying Data
- Getting something to the moon.
- Astrophysics Masters/PhD
- Math to the Moon...
- What Are Orbit Requirements?
- Hypervelocity stars
- New Planet?
- What would happen if you "fell" into a black hole?
- Universe, Big Bang, time and black holes - a position of the layman - part # 1
- Big Bang, time and black holes - a position of the layman - part # 2
- calculating dark energy
- How stars get their mass.
- True angular extent of semi-major axis
- Help understanding basic astronautics?
- How Can This Be?
- Spiral rotation
- Creation of Stars
- How is measuring Redshift possible?
- astrophysics
- Need Help with Research Paper
- Must a "Hot Jupiter" be relatively young?
- Black hole gravational pull vs neutron star ?
- Downsizing!
- Expansion of quantised space
- Bode's Law (Or better attributed as Titius' Rule)
- How can we see stars past 13.5 billion light years away?
- Solar Heating of Earth
- Layman's question about orbital planes
- About BTZ black hole
- Cosmic Radiation - how is our sun's speed calculated?
- Length of a month
- radial arms of the SBa, Sbb and Sbc galaxies - why are they radial?
- Would this system be stable?
- entropy of Schwarzschild black holes
- Physics Topics for Astrophysics?
- Starring Gravity, Co-Starring Magnetism
- Is the birth of the Universe a random event?
- Ask for some concepts
- White holes
- Can rocket engine blast push space junk?
- Matter, Energy, & Gravity
- The big bang through bozons
- The temperature and area of Event horizons as they relate to probabilistic events
- about planet?
- Dont Know much about Astrophysics,need some help
- are we correct?
- How do I calculate M_I from M_J values?
- How to measure the extinction law of a galaxy
- Universe only appears to be expanding.
- How a binary system affects gravity on members?
- Dark Matter as a Yukawa Like 5th force?
- Some questions about glob. clusters and dark matter
- Wow! Anyone seen these pictures? Could they explain dark matter?
- Double Einstein Ring
- Frame dragging around a rotating black hole.
- Luminosity of a star
- One very very stupid question ... (dark matter)
- dark energy or vaccum energy
- Einstein + Hawking = Dark Matter ?
- help with gravitational potential energy of stars
- Photon decay questions
- Miniscule changes in the physical constants?
- Tikekar superdense stars and interior metrics
- CMB fluctuations related to dark matter and normal matter?
- Mass density of stars from number density
- Galactic magnetic field
- Can we make a standard Universe clock?
- Galaxies - spiral arms split, why?
- faint regime
- Universal Expansion?
- Schwarzschild Effective Potentials
- binary w/ black hole - semi-major axis?
- Black hole and wormhole
- Origin of bar centered galaxy?
- Typical magnetic field in stars
- Extinction events and an astrolabe
- Galactic Center
- Gravity and the Speed of Light
- do black holes have entropy?
- Black holes-- time travel?
- Is Fusion possible at the accretion disk of a Black Hole?
- Could dark matter be explained as a quantum gravity effect?
- Three times as many stars? (new estimate by van Dokkum and Conroy)
- A problem with expansion...help please
- Sun's evolution (evidence).
- Is this reaction possible in the star?
- Dark matter detection
- Communication signals and the speed of light
- the order of the event?
- Black Hole Detection?
- Life Here Began Out There.
- Is CNS disproven?
- astronomical erros
- Stars: Creation, destruction and impact on the universe
- A philosophical question..
- Existence of super-massive black holes
- An object and its light...
- 12.5 billion years ago what did...
- Please explain the paths that planets take in regards to spacetime.
- a really basic kepler question
- Amaldi's contest
- A question about expansion of the universe
- Gravity
- why do Planets have elliptical orbits ,AND
- Could the inflation epoch carry information faster than c
- Trajectory of object around the moon as function of time..
- pulsar timing accuracy
- Empirical measurement of the expansion of the universe
- Maximum redshift - can it move light off the scale?
- Quick solar particle question
- Initial mass function - power law
- Quantum Astrophysics?
- Does the Earth get bigger from the sun?
- He-4 abundance
- Bad programming skills = biggest hurdle to astronomy research
- What are the best RSS feeds for the latest astrophysics research?
- Best places to find fellow astrophysics enthusiasts?
- Black hole singularity
- Gravitational lense
- We and the Dark matter
- Determination of spin-parity of Hoyle state
- Comet Evaporation in Oort Cloud
- Healpix
- Earth-Moon vs Earth-Sun Lagrangian Point system
- Pioneer Anomaly and Dust?
- Studies in Highschool
- Accepted (precise!) value for lunar L2 point?
- Circular restricted three body problem
- routes to formation of a black hole?
- How exactly do wormholes work?
- Does dark matter fall into a black hole, and create radiation
- Movement of different-sized crafts in space
- CMBR and space
- Dark matter = black hole?
- Do all measurements need to be normalised?
- Is dark matter distribution clumpy or homogenous?
- Four Black Hole Questions
- freshman project in astrophysics
- Kepler-10b...
- Black hole, time and observations
- Gravity vs. Degeneracy Pressure
- Dark Energy vs one Black Hole
- Primordial Black Hole as nucleus for gravitic atom
- Why have astronomy departments stopped teaching celestial mechanics/spherical trig?
- Black Hole: Conservation of energy
- Gravitational Collapse of a Star
- Fermi observes beams of positrons caused by terrestrial T-storms
- Gravitation and orbits
- why the 21 cm line for SETI?
- Stability of a binary planet system
- how did Kepler arrive at his equation without calculus?
- Rate of change of the volume of the universe
- Is there a 'simple' YORP calculation
- Objects collapsing to black holes
- Astrophysics project gone wrong: why isn't the moon tearing the Earth apart?
- Space travel
- Can i Get your opinion?
- Orbital path of reduced mass?
- question regarding red shift and tired light hypothesis
- Units used on Voyager golden record
- path of light@ various distance from Black Hole
- Help with designing a modeling experiment
- Proof of satellite revolve around earth in circular path
- A Jupiter-mass companion to a solar-type star
- Detecting Multiple Planets Around a Star
- can anyone help mess around with escape velocities?
- can someone calc these escape velocities?
- Orbital speed at 30 miles?
- Thermal expansion coefficient of Jupiter
- 'Normal universe' a special case?
- Do even torch lights twinkle in the sky?
- Does twinklingdepends on the star or the distance?
- Why hasnt been artificial satellites torn apart?
- Could stronger gravity replace dark matter?
- Supernova Explosion
- Net gravitational pull from Mars..
- Any transfer orbit better than Hohmann?
- Research, I Guess
- black holes, gravity, light.
- Dark Matter - what's the mystery?
- Chances of catastrophic interaction with rogue planet in Sun's lifetime?
- A doubt from the book Galactic Dynamics from Binney and Tremaine
- Black holes and dark matter
- Orbital mechanics question
- Questions about a universe born from nothing
- Energy in two body orbits
- How did our moon achieve orbit?
- What's the easiest way to move a star?
- Dark matter question
- Evidence that the Universe is Expanding?
- Radiation From Blackhole
- Lunar Habitat
- How generalizable is simulation/model research?
- Black Holes: growth affected by Higgs or Dark energy/matter
- Theorize Possible Colonization on Europa
- Velocity of the local standard of rest
- How to Create a Wormhole
- Why does the Moon orbit the Earth rather than the Sun?
- Brightness of Betelgeuse
- Bad astronomy in massive star luminosity
- How many pages of astrophysics textbooks can you absorb in a day?
- Just for fun: calculate this
- Is Gravitomagnetism attractive does it have important long range attraction?
- Singularity
- Accretion Induced Collapse
- Jeans Mass and Central pressure
- Equation help - Orbit
- Solar Radiation Force
- Galaxy gravity ???
- The meaning of angular extent
- the eccentricity of binary stars' orbits
- Element before singularity
- How long does it take a black hole to gain seven billion solar masses?
- parallax of a binary system
- telescope question
- time (seen by distant observer) for matter to fall to the event horizon of black hole
- Type Ia Supernovae
- Is the sun a black hole for low frequency radiation?
- What's a natal kick in reference to astrophysics?
- Why doesn't dark matter fall into black holes ?
- Inhabiting gaseus planets (such as Jupiter,
- Gravitational lense
- Trying to wrap my brain around gravitational assists
- How to change a star's luminosity
- telesope apparent field
- Particle Astrophysics
- Why is dark matter distributed in a web rather than falling into clumps ?
- Fundamental Existence Of Matter/Energy
- energy of a star's atoms
- Stellar Engine calculation
- botzman equation
- gravitational force
- orbit of close binary stars
- tidal gravitational forces
- orbital velocity question
- a planet orbiting a star
- lagrangian points
- Has Dark matter really been proven?
- magnitude of space debris
- can someone explain g on earth
- what happen to gravity in the center of earth
- Gravitational component of light and neutrinos in the universe
- sun rotates?
- difference between theoretical astrophysics and theoretical physics
- Naked singularities and traversable wormholes
- Line of sight and star density question.
- The Frost Line of the Solar System
- source of energy for white dwarf and neutron star
- Rapid Cooling of the Neutron Star in Cassiopeia A Triggered by Neutron Superfluidity
- sign convention of bolometric correction
- spectrum of stars
- Skipping off the atmosphere
- stellar spectra
- Planet Perihelion
- Celestial Mass Accretion Spectrum
- MOND paper says Bullet Cluster poses problems for Lambda-CDM
- Calculating star's radius and temperature.
- Are Black Holes Matter Sprinklers?
- The perihelion precession of Jupiter
- black hole jets
- u=√(GM/r)
- accretion disc for a black hole
- Moon Libration percentages
- boltzman equation
- Total radiation flux from a star
- Substellar temperatures comparable to that of the Earth
- Book about Measurements in Astronomy and Cosmology
- critical density (rho)
- Radiation pressure in stars
- Gravitational force
- How do you explain the CMB anisotropy diagram?
- What fields have the hardest papers to read?
- Escaping from Black Holes
- Is there a program that can computationally fit spherical harmonic functions onto a d
- Wormholes
- Calculating the Hubble Constant at Different Redshifts
- Is my analysis correct?
- Solar flares triggering seismic events
- Requirements for Light Speed Travel (as we understand now)
- Spherical star in a hydrostatic equilibrium
- The degree of order in the Universe
- Simulating Galactic Evolution in a Game
- Jeans equations of galaxy
- Pulsating variable star mathematics question
- Evidence for spatial variantion of the fine structure constant
- Dark energy question
- How to get white light?
- Greetings..
- Orbit Modeling using MATLAB
- how to calc the deflection of a body by the sun...
- Hypothetical Model of the Sun
- How did comets acquire ice?
- Orbital Ellipse
- Is there a quanta associated with dark energy?
- Formula for the Path of the Sun
- What happened to stellar astrophysics?
- how can hawking radiation escape?
- No expansion of space
- reversed gravity?
- Density of supermassive black holes.
- Galaxy rotation curves
- Net Flux from isotropic source
- Black Holes
- Question on cosmic distances
- Instant communication between great distances?
- Taking issue with random walk of photon in star
- Black holes can be characterized by their event horizons.
- Is BEC still considered a viable dark matter candidate.
- Photodisintegration Supernova
- Antimatter universe
- Equation of state for electron degenerate matter
- Milankovitch 100,000 years cycle problem
- Carbon nucleosynthesis
- Artificial supernova
- Blowing up a world
- our galaxy's magnetic field?
- orbital elements within a gravity simulator problem
- physics projects
- With the Pioneer anomaly out of the way, could GOCE measurements account for flyby?
- Dark Matter Halo
- Wavelength
- Light approaching the event horizon
- Is it possible to escape a black hole's event horizon in a binary black hole system
- can a 1kg black hole exist?
- Neutrino fluxes at earth
- Psr b1913+16
- Pyramids = were they pointing at supernova?
- Mechanism for Gammaray Bursts (computer sim shows neutron star merger works)
- Gravity and the Formation of Stars
- NASA cancels Laser Interferometer Space Antenna
- Black Holes Suck
- Looking for info on a 'galactic dynamics' equation
- Solar wobble help
- I got a question about dark energy
- Questions about the universe?
- Reading Suggestions?
- Bigger than the speed of light?
- Physics project
- Elliptical Orbit Question
- Required mass for hydrogen burning in stars
- Blackholes and gravity
- The "Wave Zone" Definition
- Objects as L3 and L4 at once - possible?
- Black Hole Mass Accretion Temperature
- Supernovae and Hypernovae
- Distance to the Moon ?
- Angle of impact of Meteorites
- graviton?
- White Dwarf cooling times
- N-Body simulation: MERCURY vs. Swift
- What can I do if I study astrophysics?
- Origins.
- Black Hole Jet Formation
- Where's the energy go for planets axis inclined from orbital plane?
- Heliocentric to geocentric
- age-mass-magnitude relation
- space junk removing
- angle from state vectors?
- Meteor radiant angle. Is this computation right?
- Core Collapse of Massive Stars
- question about black holes
- Top US Experts in Black Hole, Worm Hole and Time Travel for public tv science show
- Could Anti de Sitter space explain galaxy rotation w/o dark matter?
- Wormhole - Conservation of Mass
- Acceleration in elliptical orbits ?
- Low mass post-main-sequence on HR diagram
- star questions
- One Million MPH Spinning Stars
- intrinsic red shift
- a question about time
- Galactic angular velocity of interstellar cloud
- The orbital eccentricity change of the Earth ?
- About the ideal MHD Eq.
- Habitable exoplanets of white dwarfs
- A problem from Binney and Tremaine
- Stable orbits for hot Jupiters?
- muons and telescopes
- relationship between mass and surface temperature of a star
- Potassium nitrate for orbit?
- [Question] What would happen if gravity were removed?
- Baby Universes?
- Planet positions and gravitational effects
- [QUESTION]Dark energy could it be an explosion?
- Moon's recession from Earth
- Time Inside a Black Hole
- Extremal Black Holes
- What is Singularity?
- Galactic rotation curves
- Delta-V Correction needed after launch?
- Can a blackhole suck in another blackhole?
- What's the opposite of a blackhole?
- How does the jetstream of particles manage to escape from the blackhole?
- Tidal force
- Magnetism and Ampere-Maxwell's law
- Short Term Orbit Propagation with centimetre level accuracy for GEO Satellites
- Quazar beam
- Parameter of ionization (Interstellar Medium)
- Dark matter exerting a gravitational effect on earth??
- Dark energy in every void
- Some questions about the tidal dissipation function
- What is this?
- Are Black Holes sufficiently characterized?
- Explosive power of a supernova?
- Picture of a Quasar Core
- How do I develop physical intuition for the tidal force?
- Einstein’s Gravity
- Why Do Some Stars Grow So Massive?
- Planets with no orbit
- Could matter pulled in through a Black Hole be same matter that births a Big Bang?
- Stable orbits for hot Jupiters?
- Dark energy [Confirmed]
- The Universe's Dark Age
- triggering the big bang!!
- have i made it right to determine this amounts regarding this question
- Gravity and Acceleration
- Milky Way distribution
- entropy and the big bang on to the big crunch and back
- Gamma photons in the galaxy
- Lifetime of Earth?
- have i made it right determining the heights?
- escape velocity problem
- determining the mass of globular cluster?
- destroy of Earth by asteroid
- Electron gas in the Sun
- Early universe: equilibrium before nucleosynthesis
- Grb090429b @ 13.14 bly
- Calculating the density of a HII region
- When will we be able to image the Oort cloud?
- Energy savings with space elevator
- Can a star with a black hole core be stable?
- Matter creation, dark energy, and the possibility of a Big Crunch
- What is Dark Matter?
- Can you recommend?
- Equation for the energy of Hawking Radiation
- Analog to digital units (ADUs) to Radiance
- does the speed of light change if?
- Position of Sun at noon between the Equator and Tropic of Cancer
- dark energy
- Black hole growth paradox question
- Could the acceleration of expansion (of the universe) be an optical illusion?
- Stable Earth/Lunar Orbit
- Jet propelled Black Holes?
- DARK MATTER: it was always there
- Supernova Research
- What is the efficiency of the Sun, really?
- Neutron Star to Black Hole Via OMG?
- Big Bang With No Center Fallacy?
- Are blackholes formed in other ways besides supernovas?
- Black holes
- Gravitational perturbations = tidal forces..?
- Would a Neutron Star Stop a Neutrino?
- Black Hole Mass Flows
- Thoughts about the universe.
- Can we identify the generation of any star?
- "STEP" mission
- Terraforming Mars
- Positions on possible parallel universe theory
- Black Hole - Questions (discussion)
- Star Swallowed by Galactic Black Hole
- Error propagation of distance modulus and parallax
- Speed of light: making non-Newtonian physics tangible
- BSC Astrophyics,Planetry Science,Astronomy
- Solar Eclipse - Are we just lucky?
- Superstar VFTS 682 and possible ejection from nearby star cluster
- Energy of Earth-Moon system
- black holes in the early universe
- Landing on a white dwarf
- Belelgeuse turning into a supernovae
- Life in the universe.
- 10 ^18 Amps, Universal Record for Current
- Theoretical scenario for star-forming...need help with a calculation!
- How can the Universe be flat?
- Black Holes and Entropy
- Yesterday's Nuclear Decay Related to Today's Flare
- Interstellar Medium Interactions
- In desperate need of some one who can help me.
- need help understanding use of cepheid variables
- Helium abundance
- Skyhook - is this better then space elevator?
- Panspermia
- Initial conditions for a halo orbit
- Variations in the fine structure constant
- Describe some basic concepts for me please?
- Understanding rotation of spiral galaxies
- abundance of hydrogen in Sun
- when a protostar stops contraction
- My Top 10 Questions
- Healpix Introduction. Any examples available?
- Mass distribution inside the event horizon
- Primordial Black Holes
- what is the relation
- Find Orbital Elements given Orbital State Vectors
- Things to research
- difference between thermal and non-thermal Bremsstrahlung
- Objects in orbit are weightless?
- Simulating the solar system
- Correct Physics for Fictional World
- Dark energy - Expansion of the universe
- Magnetic Fields on Sudarsky Class II Gas Giants
- collisional models
- Are black holes, real holes?
- Into what shape does an orbiting sphere get distorted by tidal forces?
- determining baseband S/N ratio and link margin for a satellite link
- can someone explain to me exactly what is meant by vanishing dimensions theory?
- A sense of the (U-B) and (B-V)
- Information on first planets formed in the universe
- Velocity dispersion problem
- 12 min orbit white dwarfs found! Best target for gravitational waves!
- Converting between photons/s/cm^2 to spectral flux (e.g. Jy) - Fermi LAT Sensitivity?
- Do sound vibrations from plate tectonics (earthquakes) attract asteroids?
- Weightlessness in orbit
- Black Holes Schwarzschild radius
- Why does Venus have an atmosphere?
- Radio Astronomy. Baselines and Fringes, Interferometry
- Physics puzzle: A 1" radius 7 billion K temp. ball is activated inside Jupiter...
- Tidal Locked to a Red Dwarf? What Would the Calendar Look Like?
- Gravitational energy
- Could gravity affect human evolution?
- Speed of light... is it really constant?
- ET phone home... or anywhere really
- stefan-boltzmann solved for temperature?
- Using magnetic fields in place of heat shielding
- Light in our universe.
- effect of pressure in a nebula?
- spectrum of ligh star
- Cosmic horizon of 42-billion light-years?
- Spectra
- Alfven Waves Drive Coronal Heat + Solar Wind
- A Problem with (Almost) Universal Red Shift
- Lower mass limit for neutron stars?
- Dark matter and black holes!
- Why dark matter can not collapse into a blackhole?
- Finite Universe: Light speed and the Earth's distance/time from event
- How fast can we truly ever hope to make a spacecraft?
- innovative project ideas
- Asteroid Vesta Features
- Nuclear powered space craft
- Gravitational Lensing or Inferior Mirage?
- Project Help - Distribution of AGN in a particular cluster
- Does anyone have any questions you'd like to ask to NASA astrobiologist Chris McKay?
- questions about Spiral Galaxies
- How do I calculate a planets mass?
- The far side of the galaxy?
- Star density calculation = weird result.
- Gravity in discs
- light/distance
- Brightness temperature
- intergalactic space travel
- Orbit Dynamics
- speed of light vs. the universe's inflation
- How to find the Point Spread Function of a Newtonian Telescope?
- Dark matter may be an illusion caused by the quantum vacuum
- Gravitational Wave Propagation
- Orbital periods, distances and other topics in a fictitious system.
- Speed or Compressed Time/Space
- Silicon in space?
- Newtons third law regarding spacecraft engines
- Micro-Black Holes
- Forces and factors which act upon masses as they aproach c, and how they do so.
- Black Hole distortions.
- Spaceship concepts from The Dream Machines
- 99% of Light speed
- Sol is too small to go SN but if its core instantly vanished would it instantly SN?
- Predicting sunspots
- Why is it so accepted that matter falls into black holes?
- About some possible theories of the creation of the universe?
- Will the earth and sun ever be tidally locked?
- Mass of doubles stars
- Mass to Light Ratio for Dwarf Galaxies
- Drag at the Lagrange points?
- sci-fi novelist's plea for help
- Orbital mechanics: anomaly at epoch -> time of periapsis passage?
- Pressure distribution in the sun
- tidally locked planet - shouldn't the Goldilocks zone be wider?
- Take a stroll on a brown dwarf...
- Nebula
- Earth is itself sophisticated !
- Black Hole Eating a Star
- What are Starquakes?
- Understand the initial mass function
- Life in the early universe
- Question about newly forming red giants - degenerate matter/helium flash
- Anything beyond the universe?
- Spectrum of the Sun vs black body
- Are we detectable?
- The cause of dark energy may be what triggers the same process similar to mitosis
- Hawking Radiation and Particle/Anti-Particle
- Dark Black Hole
- Chandrasekhar limit equation/white dwarf mass-radius relation
- The shape of black holes and their surroundings
- What Is Non-thermal Radiation?
- Can Simple Mass Accretion Turn a Neutron Star Into a Black Hole?
- Super Novas Create Heavy Elements: Does this absorb or release energy?
- Acceleration of Matter produces Mass Dilation. Does this produce GRAVITY dilation?
- Correctly calculating gravity classically.
- Gravitaional Waves
- How far away is the Oort Cloud?
- Collapsing Stars on the H-R diagram
- How do neutron stars emit light?
- Wormholes for space travel?
- Size and time dilation
- Should I pursue astrophysics?
- If Earth suddenly stopped revolving, roughly how long until it'd fall into the Sun
- What would happen if two Earth size planets very slowly collided?
- Gravitational Variances in Space
- He II, O III lines?
- Intensity vs Pixel number CCD
- Expansion of HII regions
- Can a sun rise and set on the same horizon?
- Effective Astrophysics blogs
- Hard evidence for quasar lensing
- Chandrasekhar limit & Tolman–Oppenheimer–Volkoff limit
- kepler's second law
- Singularity or just a very small, massive shell?
- What *would* the night sky look like if we could see the entire EM spectrum?
- what are gravitational waves..?
- what is information in a black hole
- why should radiation lead to loss in mass @ Black holes?
- Is gravity a weak force
- How do massive stars like VY Canis not turn into black holes
- New Results From LHC/ light speed project
- How close does a supernova has to be to be lethal?
- Could a star survive a direct hit from a gamma ray burst?
- Need Help Settling a Debate About Guns in Space
- Gravitational Lens Help
- Something is broken about black hole theory
- Physical Difference in a Cepheid Variable
- Propagating a Hyperbolic Trajectory
- ISIS - Image Subtraction Method
- Help understanding the Tillotson equation of state
- calculating energy from flux and max wavelength
- time lag in AGN emission mechanisms
- earth moon centre of mass
- Sci Fi World Creation
- Earth's Gravity if the Earth rotated the opposite direction
- UARS orbital perturbations
- a question with backround
- Why can't we see anything fall into the black hole?
- Neutrinos questions!
- Quasar
- Found Another (Astrophysical) Error in Science Television!
- energy in solar neutrinos
- Electro-Gravity ideas, Dark Energy
- Converting spectrum into velocity space
- Do all pulsars have a Pulsar wind nebula?
- neutrino near black hole
- Perlmutter & Supernovae
- Queen's song '39 - the only pop song about relativity?
- black hole mass gap
- acceleration of two bodies in circular orbit provided by own gravity
- time compression - high rate
- soft landiing an asteroid at the south pole
- Velocity in planetary orbits
- Please Help! I'm writing a novel involving worm holes and asteroids/meteors
- Average value of sin(i) in radial velocities (exoplanets)
- NASA interplanetary missions
- Do I have the right formulas?
- How do black holes radiate if nothing can escape?
- hubble constant
- Magnetic feilds in space
- why is dark energy necessary?
- need a good textbook for astrophysics
- I have a question regarding a science fiction story I am writing.
- Light travel paradox? Please, help to figure it out
- Equal density events for bosons and fermions
- No time before big bang.
- galaxy,arms
- Line-tying boundary condition
- Lasers and Astrophysics?
- Space based solar power.
- The size of the universe, and what we can see.
- Estimating the apparent centre of a spectral line
- Deriving the enclosed Mass
- black hole size
- collision of black holes
- Where does the heat of super-nova end up after black hole formation?
- Question: Regarding Stellar Spectroscopy Equipment.
- galaxy,distribution of stars
- A question based on Lawrence Krauss' explanation
- birth of a planet
- total energy by milkyway
- gravitational lens
- Does Fine Structure Constant Vary From Place to Place?
- Black holes, dark matter, the expansion of the universe, and unifying theories.
- Determining the dominant body in a basic planetary system simulation
- ratation of galaxy
- loss of mass
- Amount of nuclear power need to propel a shuttle at the speed of light!
- Jupiter absorbtion spectrum.
- Where did the mass go?
- Can variable stars become quickly non variable and viceversa?
- FOV in this Picture
- Kinetic energy of gases in stars
- meaning of singularity
- Mars Atmosphere And Magnetic Field
- No dark matter after all?
- What causes this shell of light around the Earth in this vedio?
- Neutron star spin and rotation axis
- Extrasolar rogue planets?
- Questions about the singularity
- Electrons on a neutron star
- How sure can we be of the distances in the solar system?
- Reason for Sunspots
- Ki-Squared Goodness of Fit for Asymmetric Standard Deviations
- Dark Energy & Expansion of the Universe; Really ?
- Exponential disk. Rotation velocity
- Solar position and velocity vectors -- Use?
- What is the rate at which the CMBR is cooling?
- Anyone have access to the 1955 Nautical Almanac?
- First post ever. Be Kind. Solar orbit questions
- Rotation curves
- cometary questions
- About the hot gas around NGC 4555
- The resulting mass of the remnant of a core-collapse SN
- I think the universe is slowing down not speeding up
- Computation of Solar Position and Velocity Vectors (Meteor Orbit)
- Silicon solar cell degradation due to solar fluxes
- The blushing face of Saturn - Radiance and Luminosity and where to build the house
- How intimate are the rays of light?
- If a neutron star loses mass, can the remaining material return to an atomic state?
- Removal of Polynomials From Raw Aperture Flux Time Series?
- A really large black hole
- Few Question from a Naive Astro enthusiast
- Are we in a black hole?
- Solar System Collision!
- Lead Pursuit Line
- Odd question
- Problem understanding NBody simulation physics
- relativistic effects on planetary shear [tidal forces]
- fun food for thought
- Influence of metallicity on effective temperature of star
- star core temperatures
- The speed of light, the term "light year", and reference frames.
- Black Hole Evaporation.
- Just how spherical is a neutron star?
- AU and the Circumstellar Habitable Zone
- Black Holes: Falling in and Looking out?
- neutron star and white dwarf material
- Neutron Star or a Pulsar - what decides
- Some Questions
- First post... a question about Black Holes and Gravity
- Black Hole Falling in / Observer Perspective Question
- Are Black Holes Camouflaged
- Radiation form a Pulsar?
- Life on Europa vs. Jupiter's Electromagnetic field
- The meaning of z number in red shift
- Gravitational lensing anomaly?
- A question on virtual antiparticles and Hawking Radiation
- Universal Expansion and the Distribution of Light
- Nonexistence outside the universe
- Please explain Dopler effect of light
- Why can Hawking Radiation not work in reverse?
- Valles Marineras Origin and Origin of Asteroid Belt Linked?
- What is Galaxy 'Completeness'?
- Position of a Body on a Hyperbolic/Parabolic Orbit with Respect to Time...
- How to become an astrophysicist or an astronomer ?
- Matter less Neutrons behave the same Less Inertia?
- Stellar online database
- Pressure of Light
- Questions on diatomic spectroscopy
- Evidence that black holes gain in mass?
- Function for position of object in the SS
- Calculating the number density of small clouds?
- Schechter Function....
- Could Mars's collision with orbiting asteroid reactivate atmosphere?
- What is the physical limit of compression of matter?
- Do our inertial frames rotate with the Milky Way?
- L-LOG-SUN - value on stellar data
- Mass, Velocity and Special Relativity
- 3D cloaking changing gravitational lensing ?
- Why are the colours of nebulae different?
- Stephen Hawking says there is no God. But,...
- Difference between blast & shock wave
- A question with a purpose for other thoughts.
- Oxygen, and space... what are the effects?
- Deflection of light passing close to the sun
- Sommerfeld Enhancement
- Alfven waves
- Black hole hunger
- Dredge-up
- Is there an absolute motionless?
- Orbital Elements--Identification of method
- Spacetime expansion effects on wavelength of travelling light
- Nuclear Waste + the Sun
- Carroll's An Intro to Modern Astrophysics vs An Intro to Modern Stellar Astrophysics
- Why are spiral galaxies generally planar?
- Calculating the period of an orbit
- Loss of obliquity on mars and its consequences toward life
- B-V index for binary stars
- Is space plastic or elastic?
- Galactic frame dragging
- what is your opinion on John C. Mather
- Cracovians Anyone? How do they work?
- Tidal lock due to rotation of displaced mass
- Pulsars: fluctuating speed of rotation?
- Space freighters
- What is mass splitting?
- Recycling of gas and other materials in galaxies
- On the rotation of black holes..
- The Properties of Jupiter's Core that give it magnetism?
- Energy Density of a magnetic field
- Do nebula's move? (Help calculating where things will be in the future)?
- Precession--Jumping from 1875 to 1950
- Orbits of planets
- geomagnetic fall to earth
- Ngc 7603
- Surface gravity as a function of luminosity?
- The history of orbital element methods
- What would be some creative ways to make a black hole?
- Star Positions from the past to new positions--Precession
- Motions of stars inside elliptical galaxies?
- How do Occupants of the ISS Survive a CME
- Computing the period of a meteor using two ways.
- Randomize phase shift in Fourier Transform
- Finding the position of an object 1800 years ago?
- Could the solar system have formed directly on the site of a supernova?
- Are dark energy and dark matter the same?
- How can galxies and dwarf galaxies be made of regular AND dark matter?
- Video Games and Their Basis in Theory
- Does anyone recognize this precession matrix?
- Absolute Magnitude Calculation, How?
- Voids;- What May be the Cause?
- Black Holes: Observation of an astronaut falling
- Earth, Sun, Moon Orbit
- Units problem in Keplerian equation
- Acceleration of spaceships with different masses?
- Detecting hydrogen inside IMC's and GMC's
- How massive/hot does a star have to be for fusion to occur
- gravity"s effect on light
- Might NGC 1073 have a non-coplanar bar and spiral arms?
- Calculating an elliptical orbit using position and velocity around a stationary mass
- When a star loses its mass, do the orbital radii of the planets increase?
- Gyroscopic effect on planetary motion!!
- calculating semi major axis
- Someone flow about dark flow.
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