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.
Does anyone recognize this precession matrix?
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Computing the period of a meteor using two ways.
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Effects of Solar Flares on the Moon and Equiptment used for lunar exploration
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Cracovians Anyone? How do they work?
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The history of orbital element methods
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Finding the position of an object 1800 years ago?
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Why Is the JUICE Mission Targeting Ganymede Instead of Europa?
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Number of Planets with Circular Orbits: Probability & Science
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Calculating kinetic energy of all matter
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Is the Universe Losing Energy and Heading Towards an Unfortunate End?
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Could the solar system have formed directly on the site of a supernova?
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How can galxies and dwarf galaxies be made of regular AND dark matter?
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Calculating Velocity & Axes of Planetary Orbits
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What would be some creative ways to make a black hole?
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Did Time Begin with the Big Bang?
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The Milky Way from the Andromeda Galaxy: Edge-on, Spiral, or In-Between?
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Atmosphere on a hypothetical tidally-locked Earth
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Do nebula's move? (Help calculating where things will be in the future)?
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Maximum Wind Speeds and Atmosphere Loss on Small Planets
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Does the Spin of a Supermassive Black Hole Influence Its Galaxy's Rotation?
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Shouldn't we have heard alien radio signals by now? Why not?
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Unveiling the Mystery of Magnetic Fields in Space
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How Can I Predict When Venus Will Be Visible as an Evening or Morning Star?
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Surface gravity as a function of luminosity?
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Why Does NGC 7603's Bridge Defy Redshift Expectations?
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Does outer space just have two spatial dimensions.
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Phenomenon of rotation of planets
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How can I recognize H alpha line?
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Energy Density of a magnetic field
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Venus: Looking for Life Beyond Earth
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Expansion and Contraction of Universe
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Space Freighters: Can Containers Take Off & Land Themselves?
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Recycling of gas and other materials in galaxies
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The Properties of Jupiter's Core that give it magnetism?
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What is the concept of mass splitting?
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Why Are Giant Stars So Low in Density?
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Goldilocks Zone: A Widened Definition
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Do Solar Flares Increase Sunburn Risk?
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Why are spiral galaxies generally planar?
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Does Dark Matter Really Exist? A Look at Alternative Theories in Astrophysics
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How does the tilt and orbit of a planet affect its analemma shape?
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Can Spider Silk Be Used As Space Tethers?
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Tidal lock due to rotation of displaced mass
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Astrometeorology: A real science?
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Pulsars: fluctuating speed of rotation?
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Are Black Holes Real Holes or Just Theoretical Constructs?
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Questions concerning hypervelocity stars
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Stargazing Any tips for amateur astrophotography beginners?
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Oxygen, and space what are the effects?
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Dark Matter, Dark Energy, Dark Flow ohh
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How Do Eclipses Affect the B-V Index of Identical Binary Stars?
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Loss of obliquity on mars and its consequences toward life
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Calculating the period of an orbit
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Stargazing Your Thoughts on a High Altitude Telescope
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Black hole complementarity and omnipresence
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Possible Explanation for Red Flickering of Betelgeuse Star in the Night Sky
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Visualizing Alfven Waves in a Spherical Galaxy
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Does a black hole really have mass?
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Orbital Elements-Identification of method
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Expanding Universe-Colliding Galaxies?
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Is there an absolute motionless?
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Do stars actually collide in galactic collisions?
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Spacetime expansion effects on wavelength of travelling light
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How Long to Ingest an Earth-Size Planet?
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Gravity and space curvature confusion
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Quantum entanglement and black holes
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Planetary Systems within Elliptical Binary Stars?
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What do the processes of first, second and third dredge-up do with a
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Cannot see the milky way in dublin?
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Difference between blast & shock wave
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Time Earth reached its Perihelion
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Supernova explosion near a black hole
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Stargazing New Celestron CPC 925 XLT Telescope Arrives - Dave's Story
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Stargazing Go with the Orion Skyview pro 120mm refractor
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Deflection of light passing close to the sun
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Milky Way's Supermassive Black Hole to Light Up in 2013?
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A question with a purpose for other thoughts.
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Where Did the Mysterious Metal Balls Falling from Space Come From?
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Stephen Hawking says there is no God. But,
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What time of year observations of crab pulsar were made
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Cosmological vs Doppler redshift
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Orbit to the Moon: nodes position
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How Do the Schechter Function and Maximum Likelihood Method Differ?
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Evidence that black holes gain in mass?
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How Long Do Red Giant Stars Last?
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What Is Galaxy 'Completeness'?
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L-LOG-SUN - value on stellar data
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What If Saturn Was a Sun? What Would Happen?
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Why are the colours of nebulae different?
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3D cloaking changing gravitational lensing ?
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Valles Marineras Origin and Origin of Asteroid Belt Linked?
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Could Mars's collision with orbiting asteroid reactivate atmosphere?
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What is the physical limit of compression of matter?
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How do you write equations in LaTeX for both Windows and Mac?
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Inserting proper symbols/letters for equations
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Mass, Velocity and Special Relativity
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Mysterious Flickering Star Over Beach
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Is the Universe's Expansion Controlled by Gravity from a Black Hole?
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Do eyepiece lengths affect telescope magnification?
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What elements make up the core of a dying star?
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