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.
Undergrad What Are the Key Insights into Dark Energy for Cosmology Students?
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Graduate Rotational kinetic energy and gravity
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Graduate How Do Black Hole Masses Compare to Normal Matter in the Universe?
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Undergrad What Keeps the Galaxy Intact?
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Largest Known Star: Introducing Myself and Cosmology
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Graduate Who the top quantum cosmology researchers are
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Graduate Titius-Bode law, any analytical or numerical derivation?
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Graduate Relativity or Relativistic Theromdynamics
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Graduate How Does Solid Hydrogen Impact Our Understanding of Cosmology?
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Undergrad Human versus robotic spaceflight
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Graduate What Is the Orbital Period of an Asteroid with a Temperature of 200 K?
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Graduate Discovering the Solar Corona Luminosity Curve: Explained and Explored
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Undergrad Universe burnout-What's so hard about that
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High School Thank you for your understanding.Dr. Gregory GreenmanPhysicist
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Graduate Escaping the Impending Heat Death of the Universe: A Possibility or a Fantasy?
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Graduate Is There a Contradiction Between Entropy in Thermodynamics and Cosmology?
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Just one irrefutable datum point
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Graduate What Lies Beyond Our Universe? Physicists' Opinions
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Graduate Universe doesn't equal Time travel
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Undergrad What would happen to Earth without the moon?
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High School Why Don't We Feel Earth's Movement and How Do Tides Affect Well Water Levels?
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Undergrad Gamma Ray burst in the Milkey Way
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High School Rockets in Space: Need for Engines to Change Direction
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Graduate Snowplow model of a supernova remnant
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High School Moon without Earth: What if Earth Disappears?
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High School Demonstrating Moon's Lack of Internal Rotation
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Graduate Universal quality of virial theorem
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High School Finding a Local Star Like Ours: 10-50 LY Radius
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Undergrad Cosmology getting stale with discoveries?
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High School Sun's Energy Output: How Much & What Could it Power?
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Undergrad Why is the Earth getting closer to the sun and the moon getting farther away?
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Undergrad Naked-Eye Visible GRB: Witnessing Halfway Across All Creation
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Undergrad Why don’t planet hunters find black holes?
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High School Why do we see the near side of the moon only?
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Graduate Urban legends in authoritative astronomy
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High School Earth's Closest Approach to the Sun: Does the Date Change?
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Graduate Can Early Dark Energy Affect Standard Rulers in Cosmology?
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What are the limiting factors in this case
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Undergrad Why Does Earth's Axis Precess Like a Spinning Top?
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Graduate Is the Entropy of Black Holes Measurable for Non-Exotic Black Holes?
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Graduate Good textbooks on modern cosmology ?
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Graduate How Do Interpretations of Hubble Expansion Differ Empirically?
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Graduate Minimum value of g for blackhole
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Undergrad Light Entering Black Hole: Observed or Not?
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Have You Read Weinberg's Cosmology Yet?
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Undergrad How Are Black Holes Detected and Measured?
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Alternative idea on expanding universe
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Undergrad Dark Matter & Universe Expansion: A Newbie Question
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Undergrad Relation between earth position in orbit and its tilt
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Graduate Is There a Universal Point Where All Moments in Time Exist Simultaneously?
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Graduate Possible webpage title: Need Help with These Astronomy Questions?
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High School Newbie question on atsrophotography
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Graduate Is the Secret Number to the Universe 10^122?
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High School A Beginner's Guide to Learning About Black Holes
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Graduate Estim. dark energy up by 3 percentage points. Any reaction?
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Graduate Gravity for a stellar black hole
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Undergrad Can two stars have the same apparent but different absolute magnitudes
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Graduate Superbubbles from shock waves from supernova or stellar winds?
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Undergrad Earth/solar position vs spiral arms
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Graduate Meaning of setting the scale factor equal to 1 at present epoch
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High School Moon Preservation: What if a Spaceshuttle or Missile Hit It?
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In the Beginning: How Many Object to Creation-Like Events?
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Undergrad What Material Makes Up Black Holes?
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Astronomy Videos: Collection by NGC6822 on YouTube
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Anybody know anything about parallelogram mounts
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Undergrad . Radio Spectroscopy -> Finding the doppler shift in a graph
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Graduate Question from a fool about the big bang
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Undergrad Just a simple explanation please
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Graduate Tired light vs. expanding universe
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Undergrad Equatorial Bulge: Causes & Explanation
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Graduate Is Cosmological Inflation the reason for the uniformity of the universe?
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Graduate Massless Universe: Examining the Behaviour & Mass of Our Universe
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Graduate A question regarding the orbit of material in a galaxy such as ours
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Undergrad Can two planets inhabit the same orbit?
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An astrophysicist (+blogger) to be aware of
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Undergrad Just Checking - Calculating Angular Diameter of Moon
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Graduate Can there be anything outside of our Existance?
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Graduate Measuring the temperature of quasars
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Undergrad Calculating Absolute Magnitude of a Star - Red's Help
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Graduate Could Dark Matter be mass in EM fields?
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Solve Your HR Diagram Problem with Expert Help - Tuugii
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Graduate Dark Energy and the Accelerating Universe (survey)
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Undergrad Advantage of measuring stellar parallaxes from Mars rather than Earth?
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Graduate Dark Matter Pooling: Gravitational Effects Explained
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Graduate Acceptable cosmological discussions
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Support Space Exploration: Agree or Not?
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Graduate If blackholes, then antiblackholes?
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How do i find a Astronomy club close to me ?
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Undergrad Is the Universe Spinning After the Big Bang?
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Undergrad Satellite Right Acension and Declination Calculations
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Undergrad Are matter and energy equally represented
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Stargazing Finding the Perfect Telescope for First-Time Buyers
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Stargazing Why Do Telescopes Have Long Focal Lengths?
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Graduate Can Particle-Antiparticle Pairs Form Stable Unions?
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Graduate Radiative transfer to space affected by atmosphere?
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Graduate Cosmological relativity theories
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Star Threatens Earth: Is it Real?
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Undergrad Measuring Distance: How Far Are Stars?
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Appearance of the lakes on Titan
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High School Gravity Anomaly: What Could Be Causing It?
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