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.
Graduate Is Dark Matter's Temperature the Key to Its Mystery?
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Undergrad Expanding Galaxies: Man Asks Question
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Graduate How Does Dark Matter Affect Orbital Dynamics in the Universe?
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Stargazing Upgrading Telescope Lens: Is it Possible for Meade StarQuest 60AZ-M?
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High School Why Don't Particles in the Sun's Center Reach Absolute Zero?
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Graduate Can a Black Hole Self-Destruct?
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Graduate Universe be determined by some average per volume temperature ?
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Graduate DM Halo Movement: Predicted vs Observed
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Graduate Spin of Black Holes: How Does it Affect Collapse?
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Can space be perceived in more then one way?
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High School Decoding the Meaning of 2003 UB313: A Discovery from October 21, 2003
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Graduate How does the orbital diameter of 2003 UB313 compare to its orbital period?
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High School Why sun looks bigger in the evening?
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High School Spectra Graph: Definition & Examples
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Undergrad Reaching Equilibrium: Estimating Time to Balance
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Graduate What Causes the Enigmatic Black Aurora Phenomenon?
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High School BVRIJHK Photometry: What Do the Letters Stand For?
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Graduate Schechter Function of Galaxy Luminosity-Density relationship
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Graduate Could a Planet Gain Mass and Ignite as a Star?
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Graduate We all love to prove things [spectral broadening/relativity]
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Undergrad Undergrad: General Astronomy Questions.
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Graduate Dark Galaxy Discovered: Unbelievable Findings
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Undergrad Is Our View of the Milky Way Accurate or Just Another Galaxy?
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Graduate Urr, this doesn't seem like it should be very hard but well, good 'ol me
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Why Are Two Stars Leaving Our Galaxy?
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Undergrad Could something be seen going the speed of light?
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High School Variable Stars: What Causes Their Brightness to Vary?
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Graduate What is behind the pulsation of the light of a Cepheid?
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Undergrad So, what would happen if a comet the size of our moon collided with Venus?
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VERY high resolution Cassini photos?
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Undergrad Infinite Gravity: Photons Particles w/o Mass?
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Graduate The Pioneer Anomaly: A Doppler Shift Explanation
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High School Is Everything in the Universe Defined by Opposites?
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Graduate Black holes: best candidate for dark matter?
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Graduate What Are the Sources and Generation Methods of Neutrinos?
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Undergrad Small Comets, Dr Louis Rich, & Water In Space
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Graduate Hawking radiation, Is it possible?
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Have you seen the hilariously bad movie, Plan 9 from Outer Space?
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Graduate Can Hyper-Velocity Stars Illuminate the Structure of the Galactic Halo?
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Universe Today PDF: Interested in Astronomy?
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Graduate Fabric of Space-Time: Investigating Wormholes
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Roving Mars: IMAX movie coming soon
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Graduate Do quasar redshift anomalies challenge mainstream theories?
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High School Has Dark Matter Been Found and Does It Bend Light?
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Undergrad How Do We Calculate the Weight of Celestial Bodies in the Solar System?
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Graduate The Mysteries of Stellar Evolution in Low Metallicity Environments
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Undergrad Is the Sun's Core Really Made of Iron?
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Graduate Terrestrial planet search review paper
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Graduate Explaining Planet Ejection in Planetary Forming Systems
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Undergrad Horizons Mission: How Will the New Horizons Probe Leave the Solar System?
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Undergrad Gravitational flux in solar system?
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Undergrad Equitorial/Horizontal co-ordinate questions
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High School Air baloon and came back down about 12 hours later
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Undergrad Vaporizing Black Holes: Does It Really Happen?
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Graduate Important Findings on Dark Matter
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Graduate Sun ejects its outer layers as it becomes a white dwarf
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Graduate Close encounters of the massive kind
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Undergrad How Does Jupiter's Gravity Affect Its Gas Composition?
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Undergrad Will Stardust's Return Uncover Hidden Cosmic Secrets?
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Graduate Is the Singularity Infinitely Dense and Small?
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Undergrad NASA Observation: Cartwheel's Massive Rings
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Graduate Life on a brown dwarf or a fissioning rouge planet?
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Graduate Nemesis and Planet X: Can they be Ruled Out?
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Graduate What Do Orbital Motions of Outer Planets Reveal About the Pioneer Anomaly?
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High School Exploring Our Solar System: Gas and Debris
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High School Determining Best Time of Year to Observe a Star - Astronomy for Beginners
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Graduate A New Explanation for Venus' Retrograde Rotation
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High School Can Sound Be Heard on Other Planets?
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Graduate Can We Observe the Growth of Black Holes and Their Mysterious Processes?
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Graduate Analyzing Dark Matter Halos: Isothermal vs NFW Profiles
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Graduate Not sure this is the right thread for this?
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High School Age & Distance of Stars: Clarifying Light Speed Impact
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High School Trapezium in orion was a very strange quadruple star
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Three cheers and two years for the Mars rovers
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Undergrad Why don't stars explode? What holds them together?
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Undergrad Planetary Orbits Around Black Holes
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Heim-Dröscher space,eight-dimensional universe, Mars-Earth: three hour trip
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Earth Seen from Mars - NASA JPL Image
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Undergrad Placing an Asteroid in Moon Orbit: Is It Possible?
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Undergrad Finding the distance to an Asteroid
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Destroy a Planet: How to Annihilate a Planet
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Graduate Frank Tipler on Matter-Energy Conversion
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Earth Space Agency: Your Opinion Matters
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Graduate Same star in many places in the sky
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High School Spacetime Diagram of Binary Star System - Get Visuals & Info
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Graduate New Clifford Will paper (LISA, BHs)
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Not your standard '2005 in review' thread
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Graduate Alternate sources for 3K background radiation?
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Undergrad How do the moon's & earth's orbital planes intersect?
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Undergrad Understanding Negative Pressure: Physical Description Explained
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Undergrad What Causes the Vibrant Cloud Colors on Jupiter?
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Undergrad How Do We Know the Sun's Orbit Through the Galaxy?
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Graduate Is It Possible to Destroy Stars Technologically?
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High School I am probably going to be critizied for this, but
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Graduate What Happens When a Star Exceeds the Chandrasekhar Limit and Forms a Black Hole?
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Graduate Is Blackhole Symmetry Proportional to Information Exchange?
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Graduate What do we know about the mysterious dark energy and dark matter?
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About to become an armchair astronomer
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Undergrad How do know if something is red-shifted without prior knowledge?
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Graduate What is Universeguy's Paradox in the Study of the Pary Galaxy?
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