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 Light Waves at Edge of Universe Question
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Graduate Universe as Computer Sim. - Practical Considerations
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Graduate Slower rotation curves at centre
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Graduate How is the Velocity of Ejection Related to Quasar Redshift?
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Graduate Holographic Principle Research Paper
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All our information comes from light
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Graduate What causes space time to come into existence?
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Undergrad How constant are constants? - ice skating
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Graduate Could Negative Mass Exist and Affect Black Holes?
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Graduate How Do We Understand the Size and Limits of the Universe?
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Graduate Sim of first star formation (100 solar typical)
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Graduate Kinematic Origin of Cosmological Redshift: Bunn & Hogg
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Undergrad Matter in space create red shift
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Stargazing Calc Eclipse Any Loc: What Softwares Do?
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High School Best Telescope: Refractor vs Reflector
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Graduate Can Our Universe Be in an Infinite Loop?
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Graduate The Size of the Universe: Does 78 Glyr Radius Make Sense?
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Undergrad Determining Sun-Earth Distance: Parallax vs. Kepler's Law
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Graduate Radius of a star as a function of wavelength
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Undergrad Why Does Blue Light Travel Faster Than Red in the Milky Way?
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Graduate If the big crunch theory is correct, Then wouldn't history repeat itself?
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Graduate Black holes responsible for missing ET?
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Stargazing Help get my telescope functional?
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High School What Eye Pieces Work Best for Beginners with a Meade DS114 Telescope?
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Undergrad Photometry of SDSS Data: A How-To Guide
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Graduate Direct Evidence of Dark Energy (?)
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High School Could a Cosmic Explosion Propel a Space Probe Beyond Our Solar System?
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Graduate Why Does the Equation for a Star's Central Pressure Become Singular at r=0?
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High School Can the Hubble Telescope Detect Life on Distant Planets?
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Undergrad Gravitational equilibrium between earth and sun
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Graduate The constancy of the energy of the universe?
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Graduate Expansion acceleration an anomaly?
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Stargazing Is It Safe to Watch a Sunset Eclipse?
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Graduate Can Black Holes Create Baby Universes?
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Graduate Can dark matter be just a cloud of protons?
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High School Scientists Discover Liquid on Saturn's Moon Titan
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Graduate The physical meaning of expansion in cosmology
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Undergrad Accelerometer xyz anlges to ra/dec
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Graduate What is the level of precision in the universe?
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Graduate New model for the Shape of the Universe?
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Undergrad Does Hubble's law rely on the Doppler shift?
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Graduate Confused about space expansion? Me too.
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Graduate Is the Universe's Expansion Due to Mass Loss or a Repulsive Force?
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Graduate WMAP 5 Year Data Release: Cosmological Interpretation
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Graduate Distance and the Hubble’s Constant
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Graduate Axiomatic Universe: Philosophical Point of View
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Undergrad Narrowing Hubble's Constant - 8 year study concludes
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Graduate Is the Total Energy of the Universe Zero or Constant?
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High School Hubble's Law: Can somone be nice and answer this.
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Graduate Observing Quasar Accretion Disks: Scientists See Standard Cosmology at Work
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High School Scientists find the trigger of the Northern Lights
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Graduate Could we expect that temperature of CMB decreases or increases?
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Graduate Does the fabric of space-time move faster than the speed of light?
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Graduate The Mystery of Superluminal Recession Velocities in Cosmology
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Graduate Interpreting Friedmann’s Equation?
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High School What Would Happen if the Sun Was Blue?
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High School JPL Website Wrong: Venus & Uranus Rotate Opposite
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High School What Determines Earth's Yearly Cycle?
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Graduate Big Bang, Life & Quark Stars: How Long Before We're Cool?
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Graduate Real Pictures from Space: Are We Seeing Authentic Light Waves?
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Graduate Alternative cosmology: the arp-narlikar's variable mass theory
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Graduate Accelerating Universe and the Loss of Mass
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Undergrad Can We Find Fossilized Remains on Mars?
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Graduate How did the quantum fluctuations in the inflationary universe turned classical?
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Graduate Is the Copernican Principle Valid?
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Graduate The universe's boundaries and origins
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Graduate How Does Dark Energy Relate to the Cosmic Microwave Background?
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High School What is the Current Position of Planets in the Solar System?
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Undergrad Big Bang & Doppler Effect: Viewing Start of Universe?
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Graduate How much do we know about gravity?
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Graduate What Lies Beyond Our Observable Universe?
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Urban Stargazing in Orange County - Is it Possible?
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Graduate Can Matter and Energy Travel Faster Than Light at the Big Bang?
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Graduate Is a Universe Without Matter Possible?
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Graduate Latest word from Lewis, Francis et all on radar ranging
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Graduate Is the End of the Universe Beautifully Explained in Krauss & Scherrer's Article?
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Undergrad Traversing the milky way galaxy when?
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Graduate What is the accepted theory on universe expansion?
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Undergrad What is the relationship between velocity and distance in a stable orbit?
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Undergrad The Ultimate Spinning Universe: Does It End?
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Stargazing Looked through an observatory telescope for the first time today
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New Gorgeous Video from Deep Impact
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Graduate What is the relationship between entropy and the universe?
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Graduate Why don't galaxies move faster then c?
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Graduate Forces Outside Our Observable Universe?
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Graduate Difference between expansion of space and objects just moving apart?
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Undergrad Will Uranus Ever Be Tidal-Locked to the Sun?
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Graduate Pioneer 10 and 11 anomylous acceleration
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Undergrad Question about Jupiter atmosphere
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Graduate Formation of Voids: Unclear Picture
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High School Should we Makemake anything about the name?
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Graduate Merger of Neutron Stars and Black Holes
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Graduate Most Distant Galaxy: Mysteries Explained
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Graduate How Does Quark-Gluon Plasma Influence Big-Bang Nucleosynthesis?
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Graduate Why the excess of young stars close to Milky's supermassive BH?
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Binary Star System Data - Get Answers Here!
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Graduate The Blackhole Paradox: Can EM Radiation Escape?
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Undergrad What does the theory of the big bang say about this
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Graduate Our Local Group's Microwave Background Radiation dipole
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Stargazing Telescope Advice: 6" vs 8" Dobsonian
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