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 Appropriate statistical test for this situation?
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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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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 How direction of satellite changes
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Graduate Calculation of Neutron star pressure/mass using 4th order Runge-Kutta
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Undergrad Tidally locked planet's sun still moves?
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Undergrad How do you find the distance to the galaxies having equal diameter?
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Graduate Relative Motion of Planet to Star: Gm1m2/r^3 - Gm1m2/r^3 = 0
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Graduate Does Parabolic Motion Follow Kepler's Second Law?
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High School What is Big Bang? Why did it take place?
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Graduate Inverse Fourier Transform Of K-space Image…what is the object space sc
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Stargazing Hubble telescope finds a planet where it rains glass
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Aurora Australis: Reflections from Down Under
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Undergrad Mass of orbiting body calculations
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High School Why Does a Hole in Paper Show an Eclipse Shadow?
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Celebration of eid ul fitr in east
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Undergrad Can the earth loose its orbit and regain its orbit again
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Graduate How Do Electromagnetic Waves Interact with Living Organisms?
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High School What Happens to Living Things That Enter a Black Hole?
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High School Stellar or Solar system Astronomy?
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Optics Question: How do I clean polar sheets?
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Graduate Something I Don't Understand about Black Hole density.
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Undergrad Is the universe finite or infinite?
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Supermoon: Closest of 2013 on June 22-23
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Undergrad Center of the galaxy and the great attractor
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Undergrad What evidence supports the big bang theory?
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High School Is what I saw - a meteor that was heading in my direction?
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Graduate Effects of a vacuum/ the expansion of the universe is accelerating
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Graduate Black Holes: Real or Not? Magnetic Poles & Jets Explained
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Stargazing Question about reflecting telescope design.
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Undergrad Understanding Hubble's Constant: Debunking the Misconception of Its Name
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Graduate Ladies and Gentlemen Voyager 1 Has Left the Solar System
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Stargazing FOV for galilean vs keplerian telescope
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Graduate Which universities in Australia offer a PhD in Astronomy?
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Stargazing What Kind of Paint Is Used for Radio Telescopes?
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Undergrad How Does Object Collision Work in Space?
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Undergrad Is density of a material affected by gravity? If so
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High School Does Newton's Law of Gravitation Apply in Outer Space?
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Graduate Three privileged directions in the universe
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Undergrad Why is the Moon's Gravity Uneven?
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Graduate Black holes, Creating Black holes
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Graduate Is time and space truly symmetric in light of Noether's theorem?
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Graduate What happens to heavy atoms that come into the atmosphere as cosmic
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Graduate Gravitational Capture: How Can Binary Stars Form?
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High School Sun moves north as it sets in wunderground video
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High School What is the connection between hurricanes, spiral galaxies, and sunflowers?
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Undergrad Confusion about the accelerating expansion of the universe and Hubble
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High School Answer Moon's Spin: Effects on Earth? | 9yo daughter's Q
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Graduate Hippacros star catalogue - astrometric calculations
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Undergrad Did a Giant Impact Start the Moon's Movement?
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High School Black Holes & Stars - What Do We Know?
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High School Was the Bright Ball with Blue Light I Saw Through My Binoculars Saturn?
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Undergrad Delta V as a Function of Altitude
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Graduate Are small extra space-time dimensions represented correctly?
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Undergrad Are black holes bound to galactic revolution?
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Undergrad Can u'g'r'i'z' filters be converted to ugriz filters?
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Undergrad What Does Unusual Auroral Activity Mean in Astronomy?
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Graduate Question combining - black holes & conservation of angular momentum
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Graduate Colliding Black Holes & Einstein's Equations
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High School Is the Earth-Moon System a Double Planet or Planet and Satellite?
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Graduate Conservation of mass - Stellar equation
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High School Why do 1A Supernovas always explode at the same exact point?
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Graduate Blackhole temeperature and bigbang
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High School Is the moon orbiting the earth at the same speed that earth spins?
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Graduate Hydrostatic equilibrium of a cylindrical area
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Undergrad Mars in Future: What's Ahead 1-3 Billion Years?
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Undergrad Brown Dwarf more massive than stars?
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Graduate How have supernovae shaped the evolution of heavy elements in the Milky Way?
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This is how Atlantic wire scientific columnists roll
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Graduate State-space model of magnetically suspended ball
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Undergrad Had an, oh, that's how moment - Slingshot manuever
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Graduate What is Dispersion Measure and How is it Used in Astrophysics?
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Graduate Velocities in space relative to other objects
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Undergrad How many parsecs is it when the redshift z=1
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Undergrad How deep would you have to dig into Mars to reach Earth's gravity?
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Graduate Is the New Lunar Mascon Model the Key to Understanding Moon's Gravity Anomalies?
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High School Floating Objects Affected by the Moon
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Graduate Fermi energy approximation for white dwarfs
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Graduate Astronomical Archives: Finding Distances to Stars
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Undergrad Rings & Tidal Locking: Formation Possibilities
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Undergrad Animating Solar System Evolution from Real Physics Data
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High School Need axial tilt info of earth daily
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Graduate The idea behind a reverse shock
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Graduate Earth-Moon Barycenter and Pro-Retrograde motions
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High School Getting Started with DS9: A Beginner's Guide
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Undergrad After help understanding black drop effect
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High School At which distance can you see Saturn's ring with a naked eye?
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Graduate What can stellar kinematics tell us about the IMF?
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Graduate Can Atmosphere exist in Moon Craters?
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Undergrad Why do stars appear to have different colors?
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Graduate Is It Possible to Destroy a Blackhole?
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Undergrad What to study to be an astronomer
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Graduate Matter in a super condensed state?
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Undergrad Universe is speeding up? Are we traveling with it? Dark Energy.
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Graduate What gives a Black Hole its tremendous gravity?
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