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 Collection of known scientists that are beyond the standard model
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Graduate Does the 2nd Law of Thermodynamics Apply to Entropy in a Big Crunch?
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Undergrad Final Year Project Ideas: Astronomy with a Celestron Telescope
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Graduate What are the latest exciting results from WMAP's three-year data release?
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Graduate Is the Universe Really Expanding or Just Revolving Around a Central Gravity?
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Graduate Binary Planemos Challenge Traditional Views on Planet and Star Formation
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Barbara Ryden's Cosmology Book: Reviews & Opinions
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Graduate DE & DM BB product or post-BB?
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Undergrad How Does Weight and Thrust Affect Rocket Acceleration and Velocity?
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Undergrad Celestron 11" Schmidt Cassegrain: Choosing the Right Model
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Graduate Definition of Volume Limited Sample for Sky Surveys
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Graduate Calculating Solar Core Radius Using Emden's Equation
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High School Are Stars Really Formed by Black Holes?
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Graduate Do Cosmologists Truly Understand the Inflaton and Gravitational Fields?
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Undergrad Position of Earth in the Universe
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Graduate How do we detect and study dark matter in our universe?
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Graduate Different laws after a big crunch/big bang
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Graduate Obscure Questions: Lagrange Points & Life Support
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Graduate Is the Accelerated Expansion of the Universe Misunderstood?
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Graduate What is the purpose of the entire infinite universe?
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Time Travel Yeah I know maybe some parallel universe talk too
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Undergrad Unraveling the Mystery: X-Rays from Black Holes
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Graduate Sachs-Wolfe effect and dark energy
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High School Imagine to be Pluto's surface, climate and atmosphere?
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Undergrad How quasars are related to black holes in galaxies?
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Undergrad Big Bang Theory: Can Universe Expand Faster than Light?
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Graduate Entropy, information and Omphalos cosmology
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Graduate What Are the Secrets Behind Super Massive Black Holes?
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Graduate What Basis Supports the Theory of an Expanding Universe?
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Undergrad Why do Spectroscopic Binaries Have Short Periods?
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Graduate What is the current consensus on 7Li abundances and key research papers?
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Graduate Universe: Infinite Nature & Finite Singularity
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High School South Delta Aquarid or Perseids?
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Graduate Observing a Body at z=6: Calculating Photon Requirements
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Graduate Is the curvature of the universe affected by dark energy and if so, how?
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Searching for Visyar Bright Star Catalogue: Help Needed!
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Graduate Black holes and the expanding universe
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Is Traveling Essential for Astronomers to Unlock the Universe's Secrets?
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Graduate Planck - stelactic - cosmological black hole symmetry?
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Undergrad Sudden ceasing of energy generation
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What Are the Key Characteristics of a Spiral Tracer?
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Graduate Question on the expansion of space
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Graduate How Deeply Can We See Into the Sun?
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Graduate No Redshift from Distant Galaxies: Implications for Universe
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Undergrad Fusion of Stars: Time Difference for 0.50 & 1.5 Msolar Stars
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Graduate Thiemann's New Theory: Solving Problem of Time in GR & Cosmology
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Undergrad Gravity on the surface of the Moon
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Graduate Objects faster than light because space is expanding
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Graduate How many M type stars equal the luminosity of one O type star?
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Undergrad If Mars had 25% more mass would its orbit be further or closer to the sun?
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Graduate Theories without the use of cosmological principle.
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Knowledge of Time in the Past: Astronomers' Observations
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Graduate Is Every Galaxy the Center of the Universe?
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High School What is the density of the Sun's surface?
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High School How do these triangular toothpick ion engines lift off the ground?
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Graduate What is the significance of singularity in black hole physics?
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Why Haven't We Returned to the Moon in Decades?
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Graduate Just read decoding the universe : question
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Undergrad Does Juggling Follow Kepler's 2nd Law?
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Graduate Can the Large Number Coincidence Be Explained by Simple Scaling Laws?
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Graduate The cosmological principle in simple models of the universe
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Graduate Matter and space-time mutually exclusive?
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Graduate Open closed flat confused about what universe counts
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Graduate Amount of Matter in the Universe
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Undergrad Age of the sun in galactic years
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High School What Would Happen if We Tried to Pull the Moon Closer to Earth?
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Graduate Is Our Universe Flat or Embedded on a Singularity?
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Undergrad Anyone in san francisco willing to help?
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Graduate Is there an Age Problem in the Mainstream Model?
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High School Reversal of Venus: Mystery of the Solar System
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Graduate Accelerating Universe: Experiments, Acceptance & Implications
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Graduate Strangeness Nuggets to Strangeness Condensation
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Graduate How Can Scale-Related Mass Transform Our Understanding of Cosmological Problems?
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Graduate Could black holes be the creators of galaxies?
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Graduate Hyperbolic structures in the universe
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Undergrad Experiments that modeled blackholes
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High School What Did Ancient Civilizations Discover About the Universe Before 3000 BC?
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High School Discovering the Mass of Earth: How Did Scientists First Calculate It?
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A couple of free books to download
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Graduate Cataclysmic Variables spin rates
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High School Did the Black Hole in Superman Returns Resemble a Type Ia Supernova?
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Graduate Hawking Radiation: Particles, Black Holes & Dark Matter
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Graduate Spawn of black hole thought experiment
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Undergrad How Can We Comprehend the Concept of a Finite Universe?
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Hubble's camera goes into safe mode
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Graduate What is the cause of coronal loops?
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Undergrad Photon coming from a far away star is redshifted?
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Graduate How Does a Tiny Dot's Mass Distort Space Time?
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Graduate Hubble Recession vs. Moon Recession
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Undergrad Is Dark Matter Invisible and Untouchable?
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Graduate Tensor Vector scaler theories.
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High School Number of Kuiper Belt Objects Discovered - Find the Answer Here
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Undergrad What Are the Expansive and Contractive Cycles of the Universe?
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Graduate The universe, are we on the right track?
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Undergrad Translational motion of stars & planets
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Undergrad What If Earth Suddenly Reversed Its Rotation or Changed Its Axis?
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Graduate Is a zero energy universe a consequence from FRWL equations
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Undergrad Ocean Tides, Earth's Rotation, Moon's Orbital Radius, & Global Warming
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Graduate Book suggestion in reply to question from oldman
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Undergrad Deriving Distance Modulus: m - M = 5log(d/10)
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