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 Miniprobes for interstellar exploration
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High School Why Does the Aurora Only Occur in the North Pole?
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High School Is the Milky Way Really a Spiral Galaxy?
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High School Can Dark Matter and Dark Energy Be Used to Explain Superhero Powers?
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Is the Rocket Equation Holding Back Space Shuttle Safety?
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Undergrad Does the Sun's fusion reaction produce neutrons or neutrinos?
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Graduate Can Andromeda Detect Earth's Past with a Giant Telescope?
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Graduate Highest Energy Cosmic Rays Linked to Violent Black Holes
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Graduate What Happens When a Black Hole Evaporates Below its Schwarzschild Radius?
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Graduate Why Do Scientists Believe in the Existence of Wormholes?
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Graduate Confused about Metallicity Measurement in Milky Way
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High School Matter & Space: Interaction & Occupancy
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High School Is the Universe Actually Spiky Instead of Smooth?
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Stargazing Neutrino Telescopes may have nothing to see
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What is the Naked Eye Comet in Perseus?
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Graduate What is the Estimated Local Star Formation Rate and How Accurate is it?
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Undergrad Question about the obliquity of the ecliptic
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Undergrad What Happens in Black and White Holes?
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Graduate Cause of Quasar Wind: The Mystery
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High School Does a Black hole emit anything?
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Undergrad How Much difference b2in theoritical and experimental astrophysics?
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High School Why do planets revolve in elliptical orbits?
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Undergrad Albedo and reflected light from the moon
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High School What Pulls the Sun? Understanding Gravitational Pull and Mass Effect
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High School Does a planets orbit ever go chaotic?
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Stargazing Non-Magnifying Telescope Lenses: Components & Effects
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Is Earth at Risk from Rogue Black Holes?
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Graduate Question on gravitational lensing
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Undergrad A Parallel Planet: Discovering Unseen Worlds
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High School Planets and Stars: Will Our Sun Orbit Bodies With Greater Gravity?
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High School Asteroid Database: Find Objects with RA, Dec & Julian Date
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Graduate Can Energy Compression Create a Black Hole?
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High School Edwin Hubble's Redshift and the Hubble Space Telescope
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Is the Space Station Being Decommissioned?
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Graduate Big Bang and Big Rip Theory: Is Expansion the End?
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Graduate Is There an Infinite Number of Universes in Infinity Itself?
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Graduate Objects Entering Black Holes: The "Spaghetti" Effect
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Stargazing Gaze the Stars: Tips for High Schooler Stargazing in OC
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High School Electron, Atom, Planet, Star: Do All Galaxies Orbit a Single Mass?
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What is the estimated age of the Kebira crater in Libya?
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Graduate UV Star Redshift 8: Doppler Effect Impact on IR Spectrum?
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Graduate Distance to See One Star: Current Tech & Laws
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Undergrad Gravitational lensing and Dark matter
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High School Global warming and solar actvities
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Undergrad The Mystery of Earth's Rotation & Revolution
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Undergrad Mercury: Why Doesn't it Vaporize Away?
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Undergrad So , we don't know how universe began?
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Undergrad Telescope Size and Distance: Do We Need Four Times the Diameter?
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Graduate Would the night sky still be dark with 2mm-sensitive eyes?
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Graduate Cepheid Stars & the Hubble Parameter: What is Their Role?
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High School Can black holes and alien invasions explain the Tunguska event?
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Undergrad Developments in Space Exploration
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High School Discovering the Sun's New Twin: HD 101364
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Undergrad Can the Speed of a Gamma Ray Burst Exceed the Speed of Light?
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Undergrad Is Earth's Orbit Shifting?
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Graduate Limitation to mass of currently forming stars?
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Does nuclear weapon can destory the moon?
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Graduate Absence of Jupiter: Accretion Effects & Impacts on Earth
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Graduate Numerical Fourieri Analysis of a GRB light curve
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Undergrad Limb Darkening Coefficients Calculation: Understanding Bandpass Selection
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Undergrad Moon Destruction: What Would Happen to Earth?
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Undergrad Space Vehicle Patent: Is Electromagnetic Propulsion Possible?
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High School Gravity in Space: Why is Zero Gravity?
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Undergrad Has Anyone Used a FITS Library for Extracting Galaxy Coordinates in C++?
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Graduate Disproving Kepler's Law: Evidence from Earth's Orbit
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High School Measure of elevation of Antares at 30minute intervals
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Are Voyager 1 and 2 Still Sending Data Back to Earth?
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Graduate Sun's Normalcy: Is Less Nuclear Burning Possible?
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Graduate Nonrelativistic perihelion drift, best references ?
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Stargazing Telescopes: what can you see without CCD?
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High School Is There Life on Mars and How Does Water Play a Role?
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Graduate Questions about Light: C+ Universe Expansion, Radiant Energy Transfer
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Graduate Uncovering the Mystery of Millisecond Pulsars: Surviving Against All Odds
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Undergrad What is the capacitance of the sun?
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Graduate Formation of Neutrons in Collapsed Stars
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2001: A Space Oddyssy (Contains Spoilers)
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Undergrad How did the heavier elements form?
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Is the Universe Missing a Chunk of Matter?
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Undergrad Angle viewed form erath between sun and planet.
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Undergrad What is Meinel System and OH Meinel Emission Bands?
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Graduate Can Light Escape the Boundaries of the Universe?
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Undergrad Mean Orbital Separation Question
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Undergrad The First Sputnik: How Was Geocentric Orbit Achieved?
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Undergrad Moon's orbit & length of day/month
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Undergrad Airship Rotating Earth: Can it be Done?
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Undergrad Search for Astrophysics Objects in Comprehensive Database
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Stargazing Check the profile of a telescope mirror
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High School Distance from Sun to outside galaxy?
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Undergrad Do Supernovae Emit Gamma Rays in All Directions?
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Makes it harder to believe we're alone
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Graduate What Theories Are Impacted by the New Discovery About the Magellanic Clouds?
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Undergrad Orbits: explicit r(t) and theta(t)
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Graduate What Are the Minimum and Maximum Limits for Gas Giants and Terrestrial Worlds?
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Graduate CRIRES (VLT) Radial Velocity Sensitivity
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Graduate Is There an Exact Equation for Transit Time Calculation in Extrasolar Planets?
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Stargazing Build a Powerful Telescope at Home | Tips and Tricks for Optimal Magnification
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Graduate Lunar Space Elevator: Is a Rocketless Trip Possible?
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Graduate Harnessing Comets for Planetary Colonization
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Stargazing What beginner telescope should I buy for under $150?
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Undergrad The Earthly Risk of Rogue Black Holes
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