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