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