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 Fate of relict radiation patterns
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Graduate Castor Binary (6 star hierachy) system, how is it stable?
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Undergrad How does Jupiter protect Earth from comets and such?
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Looking for composite picture of Milky-way from outside galaxy
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Graduate How and how much does is the cosmological red shift affected?
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Undergrad Can Neutrino Detectors Predict Supernovae?
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Graduate Higgs-driven cyclic conformal cosmology (Steinhardt Turok Bars)
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Undergrad Understanding Gravity at Long Distances
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Graduate Hydrodynamical description of photons
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Graduate Suppose space comes into existence
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Graduate The Meissner effect within a galaxy
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Undergrad What methods are used to measure cosmic distances?
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Viewing the Northern Lights in Nov/Dec
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Size of all things in the universe
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Graduate Is an accelerating universe consistent with the conservation of energy
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Graduate Additional Emperical Observations of the Sachs-Wolfe Effect?
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Graduate Can Colliding Black Holes Solve the Mystery of Short-Duration Gamma-Ray Bursts?
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Graduate Does captured light increase a black hole's mass?
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Graduate Is a Dynamic Dark Information Energy Consistent with Planck Data?
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Graduate Do new objects ever become visible to us for the first time?
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Undergrad Is Shutting Down the Space Fence Putting Our Satellites at Risk?
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Graduate Could Super Earths have Earth like atmospheres?
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What Makes the Oregon Star Party a Must-Visit for Stargazing Enthusiasts?
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Undergrad How can we 'see' back to the early universe?
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Graduate Relativistic Effects of a Black Hole
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Graduate Cosmological Redshift Question
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Graduate Spatial dimensions of our universe
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Graduate What Are the Flaws in Personal Theories About the Big Bang and the Multiverse?
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Graduate If a strong gravitational wave hit Earth would clocks record it?
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Graduate Feynman's New Zealand lecture, Inca astronomy, rule and reason.
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Graduate Nuclear Fusion process in the Sun (or generally, any star)
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Graduate Does Light from Distant Stars Travel Slower than Light from the Sun?
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Graduate Why the discrepancy between telescopes and big bang?
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Graduate Kilonovas caused by black hole neutron star mergers
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Undergrad Idea about Mars atmospheric loss
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Undergrad How Does Hubble See Distant Galaxies Through Our Own?
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Graduate Possible criteria or parameters for planetary collision?
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High School After Pluto what are new horizons plans?
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Graduate What is the role of dark energy in the potential occurrence of a Big Crunch?
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Graduate What Is the Gravitational Field Strength Within a Uniform Thin Disk?
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Stargazing How far can the best telescope see?
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Graduate Where Can I Find References for Galactic and Cosmological Numbers?
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What Was the Title of the 1970s Scientific American Article on Supernovas?
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Graduate Hawking's Position on Repeating Big Bang
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Graduate Seriously gritty videojournalism applied to cosmology by Skydive
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Astronomy book listing Ceres as a planet?
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Undergrad How is the Universe Expanding?
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Graduate How to Generate Initial Conditions for Modeling Galactic Spiral Arms?
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Undergrad Measuring Redshift to Support Accelerating Universe
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Graduate Dark Matter or Modified Gravity ?
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Graduate Can the Many Worlds Theory and Biocentric Theory Co-Exist?
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Graduate Force of Gravity in a 2 Dimensional Universe
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Graduate If universes are being spawned by a mother universe
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Graduate Is it certain that CMBR originates from the 5% of ordinary matter?
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Graduate How to calculate mass of closed Universe?
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Graduate Amount of nuclear power need to propel a shuttle at the speed of light
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High School Are black holes related to the big bang?
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Graduate What Caused the Pioneer Anomaly?
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Graduate Dark energy acceleration of space effect on red shift
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Undergrad Need help to start with Healpix on IDL and Windows 7
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Graduate Inflation Deflated ? the dead of inlation models ?
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Undergrad JPL News: Centaurs' Origins Revealed with WISE Data
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Undergrad Can Traveling to Stars Reveal Earth's Past?
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Graduate Dark Energy & Life: Can We Survive?
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Graduate 'Fast forward' vision when travelling towards a star?
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Graduate What Is the Ratio of Baryonic to Dark Matter in the CMB?
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Undergrad Where rest of inner solar system in Cassini picture from Saturn?
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Undergrad Positional Astronomy: Zenith, celestial poles and sidereal time
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Graduate Various varieties of black holes
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Graduate Define and measure inhomogenities and anisotropies
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Stargazing B mode detected by South Pole Telescope
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Graduate Can We Identify Anti-Matter Galaxies?
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Graduate Second Kepler law for hyperbolas
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Graduate Is the universe eternal and cyclic? Evidence from the CMB
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Graduate Meissner sees Penrose-type circles in Planck CMB map
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Graduate Is Conformal Cyclic Cosmology a Viable Explanation for the Big Bang?
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High School How large a mass would it be if all matter was collected together
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Graduate Mechanical Energy - Self energy of Universe
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Graduate Galaxy rotation curve of higher mass galaxy with same size
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Earth from Space: A Fantastic Nova Documentary
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Undergrad YouTube channel Life on Enceladus
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High School Amateur Astronomy - Learn What to Look For in the Sky
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Graduate Is there a centre to the universe
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High School Are Eclipse Glasses Truly Safe?
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Graduate Learn IRAF for Astrophysics: UofL Student Seeks Examples & Guidance
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Graduate Randomness and the life cycle of events of our Universe
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Stargazing Helping my school with a telescope, advice appreciated
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Graduate Appropriate statistical test for this situation?
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Graduate Is the Universe spinning on a vast scale?
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High School Why are there 12 months in a year instead of 365?
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High School Gravity of Earth vs Sun to Moon: Which is Larger?
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Graduate How Can I Accurately Simulate the Earth-Apophis Encounter on April 13, 2029?
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Graduate What is the Connection Between Quasars and Black Holes?
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Graduate Is the Big Bang a theory or a hypothesis?
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Graduate Is the Universe Truly Expanding? Examining the Paradox of Infinite Expansion
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Undergrad Binary star revolving arround center of mass
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Undergrad What is the heliotail and how was it discovered by IBEX spacecraft?
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High School Black Hole Destination: Final Stages, Next Steps, Reasons
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Undergrad Mass/Energy Creation and Conservation
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Graduate Nature of Primodial Existance before bigbang
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