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 First broadcast TV satellite's orbit
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Undergrad Bigbang and its light coming to us
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Graduate Evidence for stellar evolution since the Big Bang
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NASA's Decision on Hubble's Fate: To Crash or Preserve?
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Graduate Can a Stellar Object Become a Black Hole through Relativistic Mass Increase?
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Stargazing Total Solar Eclipse 2009: July 22
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Graduate Why do people refuse the idea that something caused the big bang?
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Graduate Is the moon is moving away from us? or is the universe just expanding?
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High School Why Doesn't the Moon Revolve Around the Sun Instead of Earth?
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High School What Is Time and How Does It Influence the Universe?
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Graduate The gravitational binding energy of the Milky Way?
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High School What Really Happened to the Apollo Flag?
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Undergrad Satellite is in low orbit around the Earth
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High School What Color Would the Sky Be with Different Suns?
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Graduate How Does the Sun's Luminosity Evolve Before the Helium Flash?
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Graduate Can spacetime exist without energy?
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Graduate Space Elevator on Mars: Feasibility, Design Issues & Vibration
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Graduate Gravitation: curved spacetime or a force?
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Graduate Detecting gravity's effect on light
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Undergrad Can Centripetal Force create Gravity?
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High School Why haven't we launched any artificial satellites that orbit the Moon?
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Graduate Can a primitive galaxy nova or supernova?
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What Do Astronauts Research on the International Space Station?
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Graduate Where Do Neutrinos Travel in the Universe?
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High School What Can You See with a Small Telescope in Missouri?
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Graduate What Is the True Nature of Gravity and Why Does Mass Attract Mass?
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Graduate Can Relativity explain Dark Matter?
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Graduate How unlikely is the formation of an earth size planet made of Uranium?
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High School Understanding Gravity: The Moon's Orbit in Our Solar System Explained
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Graduate Large Gas Cloud near Aquila Rift in Milky Way
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Undergrad Can we use paramagnetism to create a magnetic field on Mars?
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Undergrad Supernova explosions element detection.
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Graduate Earth Atmospheric Absorption Lines
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Is Mars Going to be Highly Visible to Earth in the Near Future?
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Graduate Can We Detect Uranium and Thorium Fusion in Stars Through Spectral Analysis?
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High School Direction of rotation in our Solar System
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Graduate Keplerian scattering through an array of mass lumps
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Graduate Are Dark Matter and Dark Energy Just Place Holder Labels for the Unknown?
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High School Figuring the location of the sun
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Undergrad Interesting astro/phys question I'd like the naswer to
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Stargazing What is the best telescope for beginner astrophotography?
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Graduate Vacuum Energy - Pair Production Confusion
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Graduate Is Gamma Ray Emission from a Black Hole Really Possible?
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Collisional model of asteroids and their debris
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Undergrad Why don't stars in a cluster clump?
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Graduate Help with Bohm's Criterion: Pre-Sheath Explained
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High School Beginner's Guide to Stargazing: Tips for Observing Space from Mumbai, India
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High School Are there any equations I can solve on a 10-hour road trip?
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Graduate What is frequency of a gamma ray emitted from a supernova
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High School Earth transits the Sun as viewed from Mars in 2005?
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High School Getting to Mars: Is 4 Days Possible?
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Undergrad How Can We Understand the Concept of Universe's Temperature?
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High School Are there any stars that do not have a planetary system?
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High School Can Staring at Stars Really Make You Deaf?
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Undergrad Counting Stars in Universe: How Big Bang Began
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Graduate How to Extract Effective Mass from a Logarithmic Galactic Potential?
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Undergrad Mercury's Tidal Lock & Eccentric Orbit Explained
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High School Difference between Astronomy and Cosmology is?
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High School What Causes the Green Tint in Some Meteors?
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Graduate Can Softening Length Affect Dark Matter Halo Stability in N-Body Simulations?
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Undergrad Can We Build a Shaw-Fujikawa Translight Engine for Space Travel?
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High School What is the other focus in an elliptical orbit?
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Graduate Real 3-Body Systems Initial Value Problem Data
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Undergrad Black Holes vs Wormholes: What's the Difference?
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Galaxy Count: How Many in the Visible Universe?
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Undergrad Is a black hole considred a black body?
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Graduate Does Graviton Scatter Affect the Moons and Rings of Gas Giants?
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Undergrad Yahoo: Earth-Venus smash-up possible in 3.5 billion years: study
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Graduate Is the Universe's Electromagnetic Radiation Noise Uniformly Distributed?
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Undergrad Black holes - a few questions from a newb
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Graduate Particle physics when light wave expands infinitely
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Graduate How did Jonathan Swift predict mars moon speeds?
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Is Haumea the Jinx Football-shaped Planet in the Kuiper Belt?
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Undergrad Help sought - data on intergalactic distances
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High School Gravitational Force: Why Don't Planets Collide?”
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High School Why Doesn't Earth Fall into the Sun Due to Gravity?
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Graduate Uncovering the Mystery of Dark Matter: Theory and Evidence Explained
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Graduate Is this interpretation on Hubble's Law/Constant right ?
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Undergrad Harnessing Energy from Outer Space - Solar, Nuclear & More
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High School Is the ground moving or are we moving?
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Graduate Potential energy of a particle within a dark matter halo
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Graduate What Happens to Gravity and Temperature at the Center of a Black Hole?
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Undergrad So how fast are we actually moving?
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High School Why does the sun travel faster about its equator?
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Undergrad Why does the sun have non uniform distribution of magnetic fields?
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Undergrad Determining the individual magnitudes of two stars
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Graduate Thor's Helmet: Pre-Supernova with Emissions Nebula?”
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Graduate Effective Destructive Range of Supernovae?
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High School Can I (amateur astronomer) detect extrasolar planets?
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How Can I Make the Moon Look Bigger Using Mirrors?
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Graduate When Did Gravity Separate from Other Forces After the Big Bang?
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Graduate Black Hole Collision: What Would Happen?
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High School Is There a Preferred Plane for Satellite Orbits?
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Graduate Mean Intensity Magnitude of Variable Star
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How, in GOD'S NAME, does one pronounce Wolf-Rayet
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Graduate Quasars & Antimatter: Evidence of Abundance?
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Undergrad Why is space so afraid of matter?
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Undergrad How can the small angle formula be used to measure the physical size of a star?
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High School Can Planets Be Juggled Between Binary Stars?
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Graduate Understanding the Three Body Problem in Space
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