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.
High School What is the sun's corona and how can it be captured in a photograph?
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Graduate Apparent magnitude of the Moon from Mercury?
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High School What Makes the Cat's Eye Nebula's Core Appear So Energetic?
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High School Can we tell when a Star has died the moment it happens?
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Undergrad How Do You Calculate the Sunset Time on the Winter Solstice at 40 Degrees North?
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Graduate Do our inertial frames rotate with the Milky Way?
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Undergrad The age old age of the universe question
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Graduate Could there be a connection between the cosmological background
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High School Why Do Stars Appear to Move in a Four-Year Cycle?
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Undergrad We cannot measure the speed of light
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Graduate Looking for a decent gravity simulator
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Graduate Could meteorites contain evidence of troilite drainage and trapped iron grains?
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Graduate Why can we see space, but not time?
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Undergrad Is there any relation between orbital motion and spin motion?
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Undergrad Distance to the Sun using Venus transit
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Graduate Color temperature and effective temperature of a star
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Graduate Does ACE IMF Polarity Come from Bz Data?
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Graduate Improving Meteor Image Quality: Methods for Noise Reduction and Detection
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Graduate Shouldn't objects entering black holes be instantly shredded?
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Undergrad Research topics in Variable stars
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Graduate Nutronstars - how they can put out light?
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Undergrad Have we ever sent anything into the atmosphere of the gas giants?
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Undergrad What Is the Orbital Length in Km on This Graph?
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Graduate Chances of hitting something in intergalactic travel
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Undergrad More garbage science reporting about the sun
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Spot a Nova in Delphinus - Bright Mag 6
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High School Phases of the Moon: Amateur Questions Answered
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Graduate Experimental status of stellar structure
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Undergrad Will the Earth survive the Sun becoming a red giant?
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Graduate What Are the Different Types of Symmetries in Grand Unified Theory?
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Graduate Luminosity Distance: Explaining the Length Differences
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Undergrad Access Solar Radiation Data: UV-A, UV-B & UV-C
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High School Is there a temperature in the universe beyond Earth's atmosphere?
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Graduate Could Dark Matter and Dark Energy Just Be a Result of Particles in Space?
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Stargazing Saving the telescope with damaged optics
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Graduate Solving Kepler Problem for 2-Body System: Velocity & Position
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High School Can I Use Microwaves to Study Asteroids?
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High School What is dark matter and dark energy, and how do we know they exist?
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Graduate Gravitational Collapse: Is Black Hole Formation Inevitable?
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Undergrad Planet formation vs Sun collapse
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High School Earth sized lava world discovered
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Graduate Is the Universe's Expansion Uniform?
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Media hype about meteor showers
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What is the mysterious purple-violet oval in the night sky?
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High School Why can't we whistle in a closed space?
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High School An Aurora Watch alert issued today
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Graduate SN 1a Progenitor Classes: Statistical Analysis
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High School Why is our moon exactly half when half?
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Graduate Speed of light (from redshifted galaxies)
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Graduate Moon orbiting close to its host planet
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High School Our sun to soon reverse its magnetic field
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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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Undergrad Can Neutrino Detectors Predict Supernovae?
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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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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 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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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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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 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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Astronomy book listing Ceres as a planet?
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Graduate How to Generate Initial Conditions for Modeling Galactic Spiral Arms?
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Graduate Dark Matter or Modified Gravity ?
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Graduate If universes are being spawned by a mother 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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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 '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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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 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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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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Stargazing Helping my school with a telescope, advice appreciated
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