Astronomy, Astrophysics, Cosmology Forum

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Join in expert discussion on the topics of Astronomy, astrophysics and cosmology. This may include discussion on celestial objects, space, and the physical universe as a whole. Mainstream science only.
Graduate Thermal sunyaev-zeldovich effect
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Graduate Inflation and entropy as information explain past hypotesis?
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Graduate Can someone explain to me exactly what is meant by vanishing dimensions theory?
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Graduate Dimensions that are not space dimensions nor time dimensions.
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Graduate Z ~ 1.6; star formation and angular diameter distance peak coincidence?
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New Mars rover launch 2011 (Curiosity, YouTube, eta August 2012))
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Graduate Alfven Waves Drive Coronal Heat + Solar Wind
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Graduate How Does Pressure Influence Nebulae in N-Body Simulations?
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Graduate Predicting the Location of a Star Within an Image
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Undergrad How much force is needed to move a planet.
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Undergrad What Are the Latest Discoveries About Pluto's Moons?
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Graduate Vacuum Energy: Gravitational Attraction or Repulsion?
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Graduate What is the significance of water vapor around distant black holes?
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Undergrad Kronberger 61 and Planetary Nebulae
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Undergrad Is It Possible to Explore the Entire Universe?
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High School What is the mysterious asteroid that has been tagging along with Earth?
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Undergrad Is weightlessness in orbit just a result of horizontal velocity?
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Stargazing Which are the top telescope producers
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Graduate Super Novae and emission of electromagnetic waves and gravitation wavefronts
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Graduate What is the Significance of the K Line of Ca II in 1934POMic?
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Graduate Detecting a Dipole in the Handedness of Spiral Galaxies at Redshift z ~ 0.04
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Graduate Is the Fine-Tuned Universe Problem a Scientific or Philosophical Dilemma?
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High School Space Expansion/Time Travel (#IMAN00B)
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Graduate Cosmic horizon of 42-billion light-years?
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Graduate Would a Deimos/Phobos orbital resonance affect Mars?
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Graduate Why is there no consensus on the big rip?
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Graduate CMB, The Horizon Problem and a comment on BH's
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Graduate Observational evidence for bottom-up structure formation
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Undergrad How to Get Intense Light Star for Spectrum Analysis
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Graduate Do we see galaxies the way they really are ?
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Graduate Rational/Randomized Question About Creating of Universe
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Graduate The Big Bounce and the Parity Problem
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Undergrad Stefan-boltzmann solved for temperature?
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Undergrad Illuminated fraction of the Moon
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Graduate What Does the Cold Spot in the CMB Reveal About Parallel Universes?
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Stargazing Observing the sun with Newton telescope
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Undergrad Calculating Sun's Speed and Movement: A Query on Theories of Light
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Graduate How Can Redshift be Expressed as a Function of DM in an Empty Universe Model?
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Graduate What is the impact of light particles on the universe's weight and energy?
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Undergrad ET phone home or anywhere really
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Graduate What Does the Planck Mission Image Reveal?
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Graduate Moving Phobos to join Deimos for single moon.
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Undergrad Is Motion Relative?: A Look at Helio/Geo Centric Fundamentals
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Graduate Our Universe Is A Closed Electron In A Far Grander Universe We Can Never See?
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Undergrad The universe is expanding wait, really?
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Undergrad If the universe is infinite, does that mean that everything exists somewhere?
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Graduate Another *Life Might Be Rare* paper
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Graduate Universal expansion vs energy conservation
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Undergrad What Is Dark Flow? A Look at the Phenomenon Observed in Galaxy Clusters
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Undergrad Speed of light is it really constant?
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Sunset & Sunrise Times | Free Software
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Graduate More on PI Early Universe Videos
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Graduate Cosmology/Fridmann equation exercises around the web?
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Graduate Bouncing universes and anti matter.
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Undergrad Difference between a Gravity Well and a Black Hole
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Graduate Could the combined gravity of the Universe create an event horizon?
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Graduate Releasing the object from Space Elevator
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Graduate Question about dark matter gravity and the expanding universe.
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Graduate Why is everyone so stuck to the idea of the Big Bang?
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Undergrad Why Are U-B and B-V Values Important in Studying Stars and Clusters?
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Graduate The Mystery of Universe's Origins: Big Bang and Evolution
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Graduate Physics puzzle: A 1 radius 7 billion K temp. ball is activated inside Jupiter
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Undergrad Could gravity affect human evolution?
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A better name for what we call the Big Bang
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Graduate Tidal Locked to a Red Dwarf? What Would the Calendar Look Like?
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Stargazing Upgrading my telescope, need advice.
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Graduate What Are the Major Theories Behind the Cause of the Big Bang?
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Graduate Radio Astronomy. Baselines and Fringes, Interferometry
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High School What Causes the Illusion of Planets Moving Backwards in the Sky?
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Undergrad Is Nemesis a Real Companion Star to Our Sun?
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Undergrad Calculating Gravitational Energy
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Graduate Position angle of Moon's bright limb (formula)
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Graduate Steinhardt's crit of inflation (PIRSA video)
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Graduate How does the jetstream of particles manage to escape from the blackhole?
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Undergrad Black Holes Schwarzschild radius
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High School Some questions about the Universe and its expansion.
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Undergrad Dark energy - Expansion of the universe
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Graduate Why aren't the <v^2> and <vr^2> curves different in my Hernquist model?
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Graduate Black Holes : Zero Volume, Infinite Density
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Graduate Do sound vibrations from plate tectonics (earthquakes) attract asteroids?
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Graduate 12 min orbit white dwarfs found Best target for gravitational waves
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Stargazing Telescope Filters: Is Something Missing?
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Is the JWST Doomed? Scientists Speak Out Against Budget Cuts
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Undergrad Physics Simulation: Calculating Gravitational Force between Earth and Sun
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Graduate Into what shape does an orbiting sphere get distorted by tidal forces?
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Graduate How Do Thermodynamics and Branes Influence the Universe's Origin?
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Graduate How does the universe handle paradoxes caused by time travel?
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Graduate Information on first planets formed in the universe
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Undergrad Where Can I Find Accurate Data for Simulating Solar System Orbits in Java?
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Graduate Electro magnetic craft levitation at earths magnetic pole possible?
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Graduate Missing matter found by Monash student.
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High School How would you steer a spacecraft?
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Graduate CMBR anisotropies, FAQ, & universal rotation (kind of)
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Graduate Find Orbital Elements given Orbital State Vectors
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Graduate Explaining Gauss-Bonnet Term & Its Significance in Cosmology
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Graduate Death of Universe: Is a New Big Bang Possible?
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Undergrad The star Betelgeuse going supernova soon?
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Graduate How accurate are simple models of the solar system?
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Graduate Magnetic Fields on Sudarsky Class II Gas Giants
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High School Interested in looking at the night sky
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