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 it Possible to Escape a Black Hole?
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Undergrad Why do the lowest tides follow the full moon by a few days?
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Graduate Space time is not phisical object
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Undergrad Instant communication between great distances?
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Undergrad Jovian planet with breathable oxygen atmosphere.
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Graduate Could we be living in a black hole?
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Graduate Taking issue with random walk of photon in star
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Graduate What is the truth about radiation pressure in stars?
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Graduate Is BEC still considered a viable dark matter candidate.
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Graduate Equation of state for electron degenerate matter
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Graduate Black holes can be characterized by their event horizons.
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Undergrad Understanding Cosmic Distances and Time: A Question on Stellar Measurements
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Graduate Why is Ice More Prevalent in Comets than in Early Planetary States?
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Graduate Big-Bang & Inflation | R.K. Thakur | General Physics
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Graduate Could a black hole be akin to a tornado in a vacuum?
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Graduate Is there a quanta associated with dark energy?
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Undergrad Is the Net Flux from an Isotropic Source Zero?
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Graduate Galaxy Rotation Curves: Impact of Angle on Velocity and Shape
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Graduate Reversed Gravity: Antigravity Effects on Spacetime
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High School Rainbows in Space: Can We See Light Refraction?
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Undergrad How Can Spherical Trigonometry Help Calculate the Sun's Path?
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Gigantic Full Worm Moon this Weekend
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Undergrad Reasonable mass and surface gravity of fictional planet based on radius
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High School High School Debate topic: Space development and Exploration
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Graduate How can hawking radiation escape?
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Undergrad Jovian Moons: Is a Small Jovian a Moon of a Larger One?
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Undergrad When the sun becomes a black dwarf
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Graduate Do wormholes allow for time travel and travel to other dimensions?
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Graduate What Happens if a Scale Model of the Sun Weighs as Much as the Real Sun?
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High School Debunking Equinox Myths: Balancing Silver Dollars and Eggs on the Vernal Equinox
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Graduate What is the color of a neutron star?
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High School Positioning of the artificial satellite
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Undergrad Space saver compartments with mechanical crank device
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Undergrad Doppler Shift at Right Angles Confusion
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Graduate Calculating the Hubble Constant at Different Redshifts
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Graduate Naked singularities and traversable wormholes
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High School Travel in Space: Electric or Fuel?
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Uranus’ atmosphere – creative help
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Graduate Is the fate of black dwarfs to become neutron stars without proton decay?
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High School EDIT: Guys I just need someone to take me under their wing for a
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Size comparison, from the moon to the largest known star
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Graduate Evidence for spatial variantion of the fine structure constant
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Undergrad How did the planets acquire their spin?
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Graduate Dark Energy: Mass, Distance & Gravity Relationships
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Graduate Is my analysis of star observations in Orion accurate?
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Undergrad Understanding Retrograde Orbit: Velocity Requirements for Artificial Satellites
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Graduate Pulsating variable star mathematics question
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Graduate Spherical star in a hydrostatic equilibrium
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Undergrad Velocity of a star for Doppler Spectroscopy
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Graduate The degree of order in the Universe
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Graduate Coliding Galaxies: A Highly Ordered Event?
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Discover Gliese 581g - Just 20 Light-Years Away!
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High School What would happen if the Earth become completely solid?
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Graduate Gravitational Speed: Is Removal & Creation Equal?
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Graduate Calculating Moon's Total Kinetic Energy
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High School Are Private Companies the Key to the Future of Outer Space Exploration?
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Graduate Simulating Galactic Evolution in a Game
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High School Movement of spaceships versus spacewalkers
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Graduate Is a Constant Velocity Dispersion a Solution to the Jeans Equations of Galaxy?
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Graduate Travel from one spacetime to another?
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Japan's Seismic Activity Altered the Earth's Axis
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Did the Sun Go Dark Last Night?
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Graduate Requirements for Light Speed Travel (as we understand now)
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Graduate What happens to mass when it approaches the speed of light?
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Undergrad A manned mission to Mars and its obstacles
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Graduate Does the Event Horizon of a Black Hole Only Form on the Equitorial Plane?
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Undergrad Red Giant: The Death of a Star & Its Expansion
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Graduate How does the 'atmosphere' of the sun affect ligth from stars passing behind it.
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High School Position of stellar bodies in space.
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Graduate Summer Solstice Prediction: Effects of Phase Shift Parameters & Assumptions
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Undergrad How Does the Gravitational Slingshot Effect Propel Objects?
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Graduate The eccentricity of binary stars' orbits
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Graduate Total radiation flux from a star
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Undergrad Do Wormholes Exist in Our Universe or Just in Apples?
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Graduate What Happens Inside a Black Hole Beyond the Event Horizon?
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Last chance to see Discovery in orbit
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Undergrad Gravitational Force: Why is Normal to Path of Satellites, Planets?
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Graduate What Are the Mysteries of Black Holes and Their Impact on Time and Motion?
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Graduate How do you explain the CMB anisotropy diagram?
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Graduate Exploring Long-Range Coulomb Interactions in Space
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Graduate Book about Measurements in Astronomy and Cosmology
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Undergrad Earth's position relative to the Sun.
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Graduate Substellar temperatures comparable to that of the Earth
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Graduate Source of energy for white dwarf and neutron star
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Undergrad What Are the Individual Libration Percentages of the Moon?
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Graduate Has Dark matter really been proven?
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Undergrad Why are solar systems or galaxies flat?
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Where Do Black Holes Go After They Form?
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High School Understanding the Rotation of Stars: Origins and Processes
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Graduate Is the Matter in a Black Hole's Accretion Disc Entering the BH or Circling It?
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Graduate Do Magnetic Fields Around Black Holes Overpower Gravitational Pull?
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Graduate Heliocentric and baryocentric corrections.
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Graduate The Frost Line of the Solar System
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Undergrad Calculating star's radius and temperature.
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Graduate What is superfluidity in neutron stars explained with crayons?
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Undergrad Understanding the Principle of 'Skipping' Off the Atmosphere
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Undergrad Red shift and narrowband filters
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What are these lines? (Picture included)
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High School How Can Light Be Influenced by Gravity?
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Graduate Difference between 'Optical Spectral Type' and 'IR Spectral Type'?
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