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 Is a Space Station More Cost-Effective than a Moon Base?
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Graduate Dark Matter/Dark Energy Question
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Graduate How Can I Mimic the Best Fit for HD17156b's Radial Velocity Data?
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Is there actualy any hi-res footage made with MARS rover?
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Graduate Simulating the Primeval Plasma to Create a Universe
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Undergrad Dark Matter vs Ether: What's the Difference?
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Undergrad Redshift at the epoch of matter-radiation equality
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What are the odds of falling in love with a physicist at an ice cream parlour?
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Graduate Max Distance & Time Til Sky Nearly Black
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Undergrad Is 34% far or slightly smaller than 100%?
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Graduate Emitted radiation and absorbed solar radiation
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Graduate What caused the physical laws we have?
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If we could travel near the speed of light
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Graduate Evidence for Dark Matter Beyond Rotation and Clusters
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Graduate Dear Marcus: Your View on Two Properties of the Universe
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Undergrad How is the energy transfered back to the Moon
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High School Titan - the next closest thing to Earth.
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Undergrad The Big Bang & The First Galaxies: How Old Was the Universe?
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Graduate Time & Space: Was the Physical Universe Created With Them?
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Graduate Could Solar Wind Be the Source of Dark Matter?
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Graduate Has Electromagnetism Shaped Cosmic Structures?
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Where Can I Find the Darkest Places for Star Gazing in the Northeast?
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High School Help with Jupiter and Saturn please
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Graduate Why doesn't iron give off any energy when it is created through nuclear fusion?
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Graduate Does time slow down when falling into a black hole?
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Graduate Space where General Reletivity Resides
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Graduate What is the heaviest element that a supernova can produce?
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Graduate What Theory Proposes an Infinite 4D Universe Beyond the Big Bang?
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Undergrad Universe Expansion: Understanding the Role of Geometry in the Expansion of Space
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Undergrad Stellar orbits around the milky way.
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Undergrad Transit Method to find extrasolar planets.
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High School Quick easy clarification (redshift vs blue shift)
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High School Saturn's Rings: Why Are They Split?
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High School What Does Empty Space Really Mean?
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TED Prize Winner Jill Tarter - SETI
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Graduate LQG Theory: Is Universe Closed or Infinite?
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Undergrad Finite vs Infinite: Does Size Matter in the Universe?
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Connecting with Fellow Cosmology Enthusiasts in Brisbane
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Undergrad Is a Symmetrical 'X' Planetary Alignment Possible in a Solar System?
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High School Please answer My Many New Bee questions on a Black hole.
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High School Brightness of ISS in Earth's shadow
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Undergrad Neutron stars and magnetic fields
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High School This first thing that Kills a human in Space?
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Graduate De Broglie equation and black holes
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Graduate Is there a beginning to chaotic inflation?
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Stargazing Viewing Saturn from a 6 telescope
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Graduate Linearly-expanding FRW model matches DL-z observations
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Graduate Can Energy of Creation Connect Us to Our Origins?
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Stargazing Where should the secondary mirror be placed in a concave mirror telescope?
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High School GR Predicts Expansion of Universe: What Does it Mean?
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Stargazing Why does Saturn move so much in my telescope?
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Graduate Is It Possible to Have Infinite Mass?
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Graduate Law of entropy vs. Big Bang Theory?
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Graduate What Is the Empty Space into Which the Universe Expands?
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High School Planetary Alignment (nothing to do with astrology)
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Undergrad Big Bang From A Collision Of Protons?
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Undergrad What is the percentage of heavy element of the sun?
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Graduate Welcome Newbie: Discovering the Edge of the Universe
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Graduate BH Mergers: 8 Images & Computer Simulations
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Graduate Understanding Energy Density and Cosmic Expansion
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Graduate Can dark matter explain the flyby anomalies?
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High School Measurement of distance in space
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Graduate Did Time, Mass, and Energy Exist Before the Big Bang?
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Undergrad A few key questions about the Big bang model of the universe
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Undergrad Rail guns for launching projectiles to space
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Graduate Measuring Star Diameter in Foreign Galaxies
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Graduate Cosmology Explains Uneven Universe Density & Matter/Anti-Matter
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Graduate If the universe came from nothing
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Graduate Earth's interior heat vs Gravity
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Graduate Does Asymmetry in Spacecraft Flyby Trajectories Cause Unexpected Energy Gains?
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Graduate Stable Blackhole: Radius Dependence
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High School What Causes the Colorful Cross in Photos of Sirius?
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Graduate Is the edge of the universe the begging of time
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Graduate Stability of Counter-Planets: Examining the Possibility of Dual Planetary Orbits
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Undergrad How Can You Capture Star Spectra for Astronomical Analysis?
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Undergrad Is Space Infinite? - What Do You Think?
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Graduate Accelerating Universe: Rate of Expansion Constant?
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Graduate We know that there are opposites all around us with energy, you have
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High School Is the bright star I saw in the west sky Venus or another planet?
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Graduate Could the Big Bang Have Been A Cyclical Event?
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Graduate Can our Nuclear weapons destroy a Neutron Star?
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Undergrad How was Voyager 2 used to determine the orbits of Uranus and Neptune?
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Stargazing Struggling to Focus with New Telescope? Here Are Some Tips!
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Graduate String/ M theory and Dark Matter
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Graduate Particle Creation: Uncovering the Universe's Origins
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Graduate Can Dark Energy Be the Sole Source of Gravity?
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Graduate A question about energetic protons (cosmic rays)
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High School Planet Gravity: What Makes Objects Attract?
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Graduate A Star's Life, (Full Explanation)
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Graduate Anti-Gravity and Black Holes: A Theoretical Analysis
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Graduate Calculating the luminosity density of the universe
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Graduate Question about the edge of the Universe
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Graduate Can an Observer Safely Enter and Observe the Singularity Inside a Black Hole?
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Graduate Is Light in a Perfectly Reflecting Box Redshifted Over Billions of Years?
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Does the Universe Operate on Mathematical Logic?
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Graduate Effects of Tensor + Scaler gravity
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Graduate How Does Space-Time Influence the Fall of an Apple?
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High School Water on Enceladus - Cassini's Revealing Findings
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Graduate Space Expansion and Light question
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Graduate Questions About Black Holes & Event Horizons
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