Astronomy, Astrophysics, Cosmology Forum

Undergrad Measuring the absolute value of the AU

Graduate Does the Maximum Entropy of a Black Hole Allow for Hawking Radiation?

Graduate The possiblity of a solid planetary disk

Graduate How to Solve Tolman-Oppenheimer-Volkov Equations for Neutron Stars?

Graduate Mass of Black Holes: Measuring the Unmeasurable?

Graduate Why doesn't the universe expand as a sphere?

High School When does Cruithne return to Earth's orbit?

High School Earth's Celestial Poles: North and South

Graduate The Supernova Legacy Survey (SNLS)

Graduate No HUP, a universe without unknowns?

Graduate A question on the rate of time in the Light we observe

Graduate New Nature Paper: Old Ia Supernovae different?

Graduate Why Can't I Solve This Kepler's Law Problem Correctly?

Graduate Are Extreme Internal Accelerations Significant in the Inflationary Universe?

Graduate Is dark matter just an illusion?

Graduate What Causes a White Dwarf Star to Exceed the Chandra Mass Limit and Explode?

Stargazing I want to build my telescope any advice ?

High School Astronomy in West LA: Can You Observe with a Telescope?

Undergrad How Big Would A Planet Have To Be To Have Earth's Gravity?

Graduate How can a neutronstar that only consists of neutrons

Undergrad Physical properties of objects that orbit each other in the universe

Graduate Why is HAT-P-1 so much larger than expected?

Graduate Why do double lobed radio galaxies and Seyfert galaxies have similar energy sources?

Undergrad !Evidence of Star Formation in Molecular Clouds

Undergrad What if objects go toward each other rather than away

Undergrad Why do Jupiter's atmospheric bands move at different speeds?

Graduate Can Light Be Multiply Scattered in the Universe?

Stargazing Upgrading from small dobsonian to a larger telescope for astrophotography

Graduate The cross section of a photon traversing the observable universe

Graduate Supernova 1987a, light, neutrinos, VSL claims

Graduate CP violation and element forging

Graduate Can gravitational lensing detect dark matter?

Graduate Gravity On Earth Dependant On Distance From Center

Graduate Just an idea I've been going over.

Graduate How Do You See Spectral Lines in Near IR from the Sun?

Graduate Tiny Blackholes may pervade space

High School What was the pole star 9,000-10,000 BC?

Graduate What Is the Role of Vacuum Fluctuations in the Universe's Origin?

High School Should gas giants count as planets?

Undergrad Sedna must be a planet (at least for now) according to new definition?

Graduate Superluminal Matter at Two Stages of Big Bang ?

Graduate Research Project Ideas - Taylor's Brainstorming

Graduate How do dark energy candidates like quintessence differ from the cosmological constant?

Undergrad Why does higher density of the early universe result in a faster expansion rate?

Graduate How Does Precession Relate to Hindu Scriptures and Ancient Astronomy?

Graduate What evidence supports the Big Bang theory beyond galactic redshift?

Graduate Arrow of Time Forbids a Positive Cosmological Constant

Graduate Why don't Saturn's rings condense into a moon?

Undergrad How close can planets safely exist from each other?

High School Do All Planets Have Moons and How Did They Form?

High School Is Space Just a Magnified Illusion of a Fluid Universe?

Graduate Can the Universe Be Understood as a Two-Dimensional Model?

Graduate Is Infinity Possible? A Discussion on Hawking's Theories of the Universe

Graduate Wolfgang Priester forsaw Big Bounce cosmology

High School Why Is Pluto No Longer Considered a Planet?

Graduate Could Quasar Activity Explain the Distribution of Dark Matter in Galaxies?

Graduate Was the Singularity Rotating at the Time of the Big Bang?

High School Why don't we feel Earth's motion around its axis, sun and galaxy?

High School Mars Closest Encounter With Earth

Undergrad Universe could be Bigger and Older - Move over 13.7 Gy

Graduate Could ordinary matter account for dark matter instead of exotic particles?

Graduate Investigating an Unknown Hypothesis on Gravity Unequality

Undergrad Scaling limiting magnitude from 16-inch to 12-inch telescope

Graduate Locacal coordinate system in GR observed?

Undergrad IAU 2006 definition of a planet: Pluto reclassified as dwarf planet

Undergrad Brightness of Mars as observed from earth

High School How can stars burn without oxygen in space?

Undergrad The moon moves in a near-circular orbit around earth

High School Measuring in Space: How Sensors Work in the Cosmos

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Undergrad Why are Ceres and dwarf planets excluded from the IAU definition?

Undergrad Velocity of a ball falling through Earth's center

High School Only earth orbits in a circular motion?

High School What Truly Defines a Vacuum?

Graduate How metallicity evolution in Type Ia supernovae affects cosmological parameters

Graduate Why is our universe the way it is?

Graduate Why Does Light Bend Around Massive Objects?

Graduate Planck black-box radiation and the universe

High School What is the red circle near the moon phenomenon?

Graduate Deriving Friedmann Equation from RW Metric - Blumfeld

Graduate Solution to the lithium discrepancy

Graduate What are the Origins and Characteristics of Cosmic Neutrinos?

Graduate Expanding universe and Conservation of energy.

Undergrad Doppler Effect and the Expanding Universe

Graduate Is the law of non-contradiction universal across all possible universes?

Graduate Drake Equation: Parameters, Missed Factors & Technical Limits