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 Can gas giants like Jupiter become stars and create a binary solar system?
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Graduate Can black holes absorb at an infinite rate?
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Graduate Big bang and small bang black holes
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Undergrad Why gas giants were created far from the Sun?
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Undergrad The Mysterious Plane of Planetary Orbits
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Graduate An apology and thoughts on the cost of experimental cosmology
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Undergrad Help me im in WAS and i need to know Delta V. .
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MY SPACE website - packed with talentless people?
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Undergrad Gliese 581c/d and their Red Sun?
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Freakiest things in our solar system
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Undergrad Can you help me have a general view on cosmology and astrophysics?
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High School What Did We Find on Titan?
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Stargazing Which Telescope Should a Beginner Buy?
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High School Will the Universe Really End Up Filled with Black Holes?
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Graduate Is There a Definable Centre of the Universe?
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Undergrad How do we overcome the challenges of sending humans to the moon and Mars?
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High School Q&A on Orbits: Throwing Balls in Space
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Graduate An Introduction to Black Hole Thermodynamics
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Graduate Unpacking the Concept of Time: What Do We Really Mean By It?
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Graduate Do Gravity Waves Contribute to Gravitational Curvature?
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High School Annoying nitpicking: has the geocentric view of the solar system been refuted?
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Undergrad Best way for a layman to get up to speed on cosmology outside of school
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Graduate Why do we and the entire universe exist?
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Graduate How Did Our Universe Begin: A Cycle of Creation or a New Dimension?
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Graduate Re-Poll: We are in a Schwarzschild black hole-T or F?
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Graduate Gravity's Effect on Universe Expansion: Dark Energy?
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Undergrad Why Is My Zhumell Dobsonian's Laser Collimator Missing the Secondary Mirror?
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Undergrad Time and Space: What Came First?
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Graduate What is the average mass a black hole consumes
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Graduate What Can We Expect from the Very Early Universe Meeting at Cambridge?
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Graduate Dark energy and the first law of thermodynamics
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Undergrad Expanding Universe: Empty Space, Gas Mass & Galactic Expansion
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Undergrad Why do gas planets not collapse?
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Graduate Superclusters and Voids - same curvature?
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Graduate Why does time seem to exist only in a forward direction?
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Undergrad Weins Displacement Law: Calculating Max Wavelength & Frequency
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Graduate Why Does Gravitational Time Dilation Decrease With Distance?
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Graduate 2nd law of thermodynamics and the big bang
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Graduate How Could the Universe Be Smaller Than a Proton?
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Graduate Universal Acceleration and Boltzmann Brains
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Graduate Do Black Holes Emit Heat Due to Movement?
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Undergrad Are Black Holes Cold? - Ask an Astrophysicist
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Graduate Virtual particles and black holes
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Graduate Can BigBang Happen Without a Vacuum?
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Graduate Kepler's Equation to calculate transfer time
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Undergrad What Would a Nebula Look Like Close Up?
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Graduate Centre of Mass and Cosmic Expansion in 4D Universe
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Graduate That asteroid where's it going?
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Graduate Can Pressure Explain the Accelerating Expansion of the Universe?
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High School How do we know the size of these suns?
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Graduate If i had a black hole of 20 solar masses, how much energy would it radiate?
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Graduate Milky Way's Two Halos Spin in Opposite Directions
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Graduate How can you find out the amount of hawking radiation a black hole exhibits?
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Undergrad Photon radiation, how does it work?
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Graduate Lambda-CDM model and geometric units
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Stargazing Telescope and astronomy questions
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Undergrad How is Stefan's Constant Used in Understanding Black Hole Radiation?
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Undergrad Why Did Only Saturn Develop Magnificent Rings in Our Solar System?
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Graduate When a star explodes, does the shock wave
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Graduate No Dark Energy: Hubble Constant & Astrophysics
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Undergrad Electric Currents in Planetary Magnetic Fields
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Graduate Cosmology Challenges: Dark Matter, Dark Energy, Galaxy Formation
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Undergrad How is the Inflation theory going?
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High School How to calculate the momentum of Pluto?
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Stargazing Negative Refractive Index Telescopes?
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Graduate Are high-z SNe Ia data reliable for measuring the evolution of dark energy?
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Undergrad The Big Bang theory, and gravity
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Graduate Gravitational Tendency of Disks & Spheres
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Graduate Temperature of a molecule in a galaxy
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Graduate If gravitons exist, does that mean spacetime is not curved by mass?
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High School Gregorian calendar off by 26 seconds a year
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Graduate How Did Cosmic Inflation Shape the 14 Billion Year Journey of the Universe?
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Graduate How do we know the universe isn't collapsing ?
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Undergrad GRBs & Supernova: What's the Connection?
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Undergrad Saturn Rings: Age and Permanent Feature
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High School Math and Distance: How Far is Pluto from Earth?
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Graduate Is Nothingness the Cause of the Big Bang?
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Graduate Why Does the Tully-Fisher Relation Change with Different Wavelengths?
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Graduate It all began with an end - New theory on origin and future of the universe
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Undergrad How Can We Study Exoplanets Using the Doppler Effect?
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High School What Is Tidal Locking and Could It Affect Earth's Axis?
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Graduate Mass-to-light-ratio and dark matter in galaxy
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Graduate Is the Universe Expanding Into Nothing?
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Graduate Uploading minds into a simulated universe
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Undergrad Can Saturn Keep Its Ring System If It Moves Close to the Sun?
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Graduate Big Bang Theory Self-Contradictory?
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Graduate Will wormholes go away (be found to be a quirk of the theory) or. ?
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Graduate Can someone tell me if GP-B has results about GR, one way or the other?
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Undergrad Question about curvature of space
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High School Can a star drift through intergalactic space?
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Graduate The Density Parameter and R^3 Space
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Interview Someone on Black Holes
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Graduate Could there be an edge to the Universe?
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Does a Galactic Barrier Exist? Ask Here
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Stargazing How to make a telescope using simple steps?
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Undergrad Which is simpler and easier to imagine?
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High School Distance from low earth orbit to Europa?
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Graduate The void: Imprint of another universe?
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Graduate Might A Hot Jupiter Require Another Gas Giant - 3-body Problem?
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Graduate Do Civilizations Exist Beyond the 20,000 Light-Year Sphere?
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