Astronomy and Astrophysics Forum

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Join in expert discussion on the topics of Astronomy and astrophysics. This may include discussion on celestial objects, space, and the physical universe as a whole. Mainstream science only.
Undergrad Backwards Orbiting Moon: Impact and Visibility with Earth's Rotation
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Graduate How would Earth mass loss theoretically affect its orbital mechanics?
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Undergrad Do You Know Why Stars Have Different Colors?
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Graduate Is This Fomalhaut's Debris Disk?
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Graduate How Are Fluid Solutions Used in Astrophysics and Cosmology?
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Graduate How is mass distribution understood within the LCDM cosmological model?
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Graduate Angular Velocity of a Nebula Accretion Disk
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Graduate How much space mining would begin to affect earth
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Graduate Creating artificial ultradense objects by ablation implosion?
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Graduate The Kantian Wall - The Meaning of Space, Time, and Mass in Modern Physics
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Graduate The First Law of Thermodynamics VS. The Universe Created from Nothing
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Graduate How to Generate Accurate Initial Conditions for Simulating Galaxy Dynamics?
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Graduate Do Solar Systems with Eccentric Planets Have More Stable Orbits?
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Undergrad Q about moon and sun tides, energy related to comet strikes and the mass water?
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Graduate Source of magnetic field of Neutron stars.
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Graduate Heat Interactions with Non-Normal Matter
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Undergrad How do you calculate declination and Right Ascension from Earth Coordinates?
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Graduate Understanding Rotation Curves: A Study of Galactic Density and Derivatives
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Graduate At what speed are we moving through space?
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Graduate A good book for astrophysics&astronomy
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Undergrad Does Light Have Mass? Gravity Effects Explained
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Graduate Geocentricism, could you comment on a conversation I had about it?
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Graduate Cherenkov radiation detection
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Undergrad Can you have binary stars with the same radius but different masses?
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Graduate Coarsely modeling impacts between bodies on a planetary scale
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Graduate On the Origin of Solar and Stellar Magnetic Fields
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Graduate Another theory of the universe based on red and blue shifts
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Undergrad Instruments and Imaging: How to prevent condensation inside a closed system?
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Graduate What Is a Black Hole Firewall?
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Graduate What are the objectives of the GAIA mission and satellite?
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Graduate Questioning the Expansion theory
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Undergrad Space: Is It an Idea or Physical Reality?
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Graduate Gravity and Acceleration on a 50,000 km Space Elevator
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High School Simple Question about the Solar System/Planetary Systems
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Undergrad Can Slow Space Travel Overcome the Speed Barrier in Vacuum Flight?
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Why a space before a punctuation mark?
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Graduate How Are Elements Beyond Iron Created in Stars?
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High School Duke University Astronomy 101 Online Course
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Graduate Comparing Large Stars and Black Holes: Understanding Event Horizons
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Undergrad Available Astronomy Research Topics?
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Stargazing Bought Orion AstroView 90mm, good?
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Graduate Dark matter solution: not receiving all the light?
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Undergrad Quick Question about the Doppler Effect
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Graduate Naive question regarding black holes.
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Graduate Black hole has a partiuclar fixed volume
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Undergrad How Can I Estimate Local Sidereal Time in My Head?
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Undergrad Solar system space dust avg density[kg/m^3]
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Graduate After watching the Stephen Hawking Series
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Undergrad Question Gravity: Explaining Planetary Motion & Hailey's Comet
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Graduate What Is the Relationship Between Time and Space in the Universe?
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Undergrad A basic question on gravity from a novice
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High School Radio communication from the galaxy's far side?
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Undergrad What Would Happen If Mars Had a Higher Density and Maintained Its Radius?
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Graduate What is the Probability of Multiple Universes?
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Graduate Do Tidal Forces in Black Holes Affect Matter at the Quantum Level?
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Graduate Gravitational binding energy of some stuff
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Undergrad Is the only evidence for an expanding universe the doppler Red Shift?
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Undergrad Which Observational Project sounds funner/easier?
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High School Is Jupiter Brighter When Far from Venus?
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Undergrad The importance of atmospheres for the planetary temperature
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Graduate 3-dimensional implications of a black hole
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Undergrad Figuring Out Mysterious Meteorite: Speed, Trajectory & More
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Undergrad Perpendicular velocity of planets
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High School Gravitational Pull: Sun vs. Earth's on Moon
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Feynman checkerboard as a model of discrete space-time
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Graduate Gravitational Lensing and Redshift
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Graduate Minimum Satellite Period problem
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Graduate Would motion explain the missing 'dark matter'?
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Graduate Effect of gravitational tides on the moon
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Undergrad Understanding Elliptical Orbits: Foci, Center, Barycenter, and Mass Relationship
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Undergrad Is the Sun Really Older Due to Relativity?
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Undergrad Could Dark Energy be Dark Matter cooling?
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Graduate Can We Pull a Metal Ball Out of a Black Hole With a Steel Cable?
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Undergrad Stellar Nebulae and angular momentum
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High School Black holes and gravity basic questions
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Graduate Unraveling the Mystery of Black Holes: The Paradox of Singularity and Infinity
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Graduate Can Super Mercurys Support Life and Sustainable Plate Tectonics?
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Undergrad Can we give an analogy for nucleus to sun and electrons to planets
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High School Magellanic Clouds — two irregular dwarf galaxies in the Milky Way
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Undergrad Horizontal + Celestial Coordinates to Geographic Coordinates
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Is the sun visible if you're standing on the moon?
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Undergrad How to get longitude from Two Line Element (TLE)
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Graduate AIPS: flagging bad data, calibration, etc
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Undergrad .Understanding Stress on Space Elevator
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Undergrad What the minimum mass for a habitable exoplanet or moon?
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Undergrad A few questions about black holes
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Undergrad What would happen if someone was sucked into a black hole?
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Undergrad Where do the heaviest elements come from?
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Graduate Fundamental Existence Of Matter/Energy
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Undergrad Do Black Holes Work Like a Sucked-Out Fire?
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Undergrad Can the merging of white dwarfs explain Type Ia supernovae explosions?
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Undergrad Relating Newton's universal law of gravitation with Kepler's 3rd law
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Undergrad Effect of Telescope Aperture Size on Spectrometer Resolution
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Graduate Are there any habitable binary star systems in the Kepler catalog?
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Undergrad What is the Correct Calculation for the Pressure at the Center of a Planet?
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High School What is the easiest way to start college in Physics, Astrophysics, or Astronomy?
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Graduate How Much Man-Made Junk is on the Moon After 43 Years and Counting?
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Undergrad How does temperature change as you move away from the sun into space?
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High School Short term atmospheric retention.
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Graduate Can Astrophysics Reveal Our Place in the Universe and Ourselves?
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