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 Effects of gravity throughout space-time?
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Undergrad Travel from Mars to Earth question......
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High School Why does the Andromeda galaxy appear so tiny from our perspective?
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Undergrad Heating/cooling moon tunnels, why and how?
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High School Anyone here in the CA blackout area that has enjoyed dark skies?
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Undergrad Matter-Antimatter black hole collision
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Undergrad Are the red dots in the Whirlpool Galaxy individual red supergiants?
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High School Nobel Prize for first exoplanet discovery
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High School Atoms, Black Holes: Solving 2 Problems with 1 Theory?
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High School Angular Meteorite Strikes on the Moons Surface
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Undergrad How to Assign Initial Conditions for Binary Star Systems in a Simulation?
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High School What Happens to a Dead Galaxy's Mass?
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Undergrad How Does Kirchoff's Law Relate to Spectrum Intensity and Wavelength?
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High School Are Electrons & Protons Oriented in Stars Like Other Objects?
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Undergrad Is Planet 9 Actually a Primordial Black Hole?
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Undergrad How can Kepler's laws be visualized using a simulator?
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Undergrad NASA's Black Hole Visualization/Explanation
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High School Is there more to the Red Shift than we think?
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Graduate What's the Difference Between Gravitational Waves and Gravity Waves?
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High School Superclusters and their galaxies
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Possible to build a space tower?
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Stargazing Who Tracks and Warns Us About Asteroids?
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Anyone else thought the Moon last night was cool?
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Undergrad Is J0740+6620 an eclipsing system?
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Stargazing What explains the Luna impact gap?
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Undergrad Electricity & Planetary Magnetic Field Reversal: Implications & Studies
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Undergrad Could a Star Avoid a Supernova and Form a Black Hole?
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Graduate Stars: Light from the Past, End in Sight?
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Undergrad Challenges to the Redshift Method and Hubble's Law
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High School How does the LIGO experiment affect SpaceTime?
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Undergrad Large Bipolar radio bubbles in the Galactic Centre
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High School A wormhole collides with a black hole -- what would happen?
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High School Do we have another interstellar visitor?
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High School Can We See Our Past? - Milky Way & Hubble Telescope
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Undergrad Question about stellar nucleosynthesis from a non-expert
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Venera 13 photos from the surface of Venus
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Stargazing What is the brightest red dwarf star seen from the Earth?
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High School What would it be like on Earth if it were not a sphere?
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High School Radiation shielding and redirecting
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High School The Mysterious Shape of Jupiter: Why Gas Planets Stay Spherical
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High School Intensity of Spherical Shell of Stars
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High School What are the maximum masses of White Dwarves and of Neutron stars?
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Undergrad Were paths of Voyager craft lucky to get out of the heliosphere?
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Graduate Future of the electron neutrino mass limits
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Undergrad Europa Clipper Interplanetary Mission
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Undergrad Relationship between collision and relaxation
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Graduate Gas around the black hole of galaxy M87
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Undergrad Distance using Cepheid variables
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If you could see gravity what do you think it would it look like?
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High School The Physics of a Black Hole Merger: What Happens to Mass?
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Undergrad Is there a radial gradient of redshifts within individual galaxies?
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Undergrad Why are planets visible in a telescope in the daylight?
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Graduate The Habitable Exoplanet Hunting Project
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Undergrad Deflect Asteroid w/ Collisions: Calculating Theta & MJ Interractions
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High School How to calculate a star's luminosity/radius
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Undergrad The Symmetry of Angular Momentum Conservation
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Stargazing Two White Dwarfs in a seven minute mutual orbit
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High School Resources to help understand black holes
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High School Is the Instantaneous Expansion of Space-Time Possible?
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Undergrad Did Planet 9 and Neptune Cause Uranus' Tilt?
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High School Is the Milky Way Warped? New 3D Map Reveals Surprising Findings
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Undergrad What is Earth's future warming due to the Sun's increasing luminosity?
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Undergrad On Hubble's constant, the expansion of the Universe and vacuum energy
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Undergrad How much worse is the location of La Palma vs. Mauna Kea?
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High School Experiment involving Kepler's laws
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Stargazing Mysterious Phenomenon Seen in the Night Sky
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Graduate Resolving power of a radio telescope array: Quantum or classical?
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Stargazing Two moons, two different rotational paths around a planet?
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Undergrad What is the Maximal Parallel Velocity of a Satellite in an Elliptical Orbit?
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Undergrad Free Orbit Insertion: Is it Possible?
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Undergrad Are dark matter and dark energy caused by same phenomenon?
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Undergrad E- & Ions Deflection by Earth's Magnetic Field
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Stargazing CApollo 11 50th Anniversary: CSPAN3 Coverage Today
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High School What would happen if the core of the sun were removed?
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Undergrad Earth’s Magnetic field formula or downloadable vector field
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Graduate Probability distribution: exponential of a quartic
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High School Cloud Cities on Venus: Viability & Feasibility
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Undergrad Fraction of solar systems with an Earth-moon configuration?
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Undergrad New table-top gravitational-wave detector proposed
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High School Thirty Meter Telescope can resume construction
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Undergrad Is the Solar Constant Really 340 W/m^2 or 680 W/m^2?
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Undergrad Can Satellites in Frozen Orbits of the Moon Study Different Ground Areas?
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Undergrad What is the geometric plan for ALMA?
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Undergrad Can the LIGO observatories detect (with accuracy) temblors?
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Undergrad The laws of thermodynamics and the Universe
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High School How Is Methane Disappearing from Mars' Atmosphere?
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High School What is responsible for the spinning of a galaxy?
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Undergrad How can an asteroid get caught at a Lagrange point without a "brake"?
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High School Why do pictures of stars have 4 cardinal points?
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High School Do planets without a solid surface precess?
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Graduate Determine whether A is orbiting B
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Stargazing Event Horizon Telescope Results Released Yesterday (April 10, 2019)
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High School What process allows us to 'see' lightyears of distance with the natural eye?
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Undergrad Does the gravity sling require rocket guidance to be non-negligible?
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Undergrad How was the Earth's Orbit Derived?
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Graduate How Does Rotational Velocity Affect Gravity and Space Launches?
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Undergrad SpaceX's 5K Satellites: A Risk of Man-Made Meteors?
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Undergrad My 3rd question - About Stellar Spectrum
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High School What’s more “important": GR or QM?
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Stargazing Does Our Picture of the Universe Become Less Accurate the Farther We Look?
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