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.
High School Is it possible Earth is a black hole?
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Undergrad Sun's Magnetic Field, Global Warming
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Graduate Gravitational waves: effect of frequency on strain
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High School The Early Universe and the Laws of Physics
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Should we invest in Mars Exploration
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High School What is the true meaning of the Big Bang?
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Undergrad Are quark stars a realistic solution to the black hole singularity problem?
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Undergrad Sun elevation for ISS visibility
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Undergrad Testing the information loss problem
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Undergrad How far out are the probes that were sent out
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High School The Earth's magnetic field and moon
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Stargazing Understanding Kidney Beaning in Wide Field Eyepieces
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Undergrad Where to find in-depth info about each star's composition?
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Undergrad How do we know we are looking back in time in space?
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Graduate What Causes a Shift in Cosmic Ray Distribution on Earth?
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High School Super-Earth Found in Habitable Zone of Nearby Red Dwarf
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Why colonize Mars and not the Moon?
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Undergrad Can negative pions replace electrons in atoms?
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Graduate Why use Earth as a gravity assist?
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High School Does Negative Mass Play a Role in Hawking Radiation?
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High School Why did Aristotle arrange the planets in this order?
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High School Celestial Mechanics: Eccentricity of Orbits
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Undergrad Questions about the lifecycle of stars
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Undergrad Are White Dwarfs Stars? Understanding the Classification and Characteristics
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Stargazing When and where is the best time to view the 2014jo25 asteroid?
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Graduate Micrometeorites and Karman effect
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High School Where have we looked, or are looking, for life?
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Graduate Spectral Classification Syntax for Binaries
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Undergrad What causes retrograde rotation in planets and moons?
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Undergrad Is a superflare capable of changing a planets orbit?
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Undergrad Can we predict the Sun's path accurately?
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High School An exercise related to the mass of the Milky Way, sort of.
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Stargazing Considerations for size of telescope survey
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Undergrad Question about a magnetic dynamo on tidally locked moons
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Undergrad Defending the Earth from meteors using lasers
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Undergrad Zero G Health Risk: Effects & Readjusting to Earth's Gravity
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Insights Q&A With Universe Today's Fraser Cain - Comments
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High School Does the Big Bang Expansion Include All Objects in the Universe?
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High School Finding Black Holes: Possible or Not?
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Undergrad Observation of photons from CMB by different observers
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High School How do black holes attract light?
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Undergrad Where on the Moon should the first Moonbase be?
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High School Is Jupiter's Great Red Spot Hiding a Massive Volcano?
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Graduate What is the formula for calculating the Ascendant?
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High School What do the letters in the solar sail equation denote?
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High School Black hole mass and sigma (velocity dispersion)
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High School The Best Spot to Set Up a Colony on Mars
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Undergrad Explain the orbital physics of the JAXA Tether experiment?
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Undergrad Would the rogue planet in this picture slow Earths spin?
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Graduate Space Radio Software: Get Help from Experts Now!
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Undergrad Length of lunar month immediately after moon's formation?
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Undergrad Can a planet have multiple large moons?
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High School If the universe is expanding at an accelerating rate....
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High School How do we know the stars are not our own light falling back.
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Graduate How is the Trappist 1 system stable?
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Graduate Orbit Estimation: Range & Doppler Measurements for Position & Velocity
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Undergrad Mass and temperature relation in stars
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High School Question about Hertzsprung-Russell-diagram
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Graduate Is the matter-antimatter annihilation observable in priciple
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Graduate Cosmological Redshift distance to where it begins?
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Undergrad How Can I Improve My 2D Newtonian Gravity Simulator?
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Undergrad Uncovering the Hidden Lepton Number of the Universe
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Undergrad Clusters at center and periphery
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Undergrad What causes the deceleration of a satellite? Space dust?
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High School Is There an Arctic Circle on the Moon?
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High School How fast is Earth traveling due to the Hubble constant?
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Undergrad Will interstellar travel become more possible in future
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Undergrad On the Moon, could you melt dirt by focussing sunlight?
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Undergrad Why are Lagrange points called libration points, and....
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Undergrad Big rip - order of distintegration?
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High School Could Microbes Really Thrive in the Clouds of Venus?
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High School What would happen to the Moon if (at full moon) the Earth disappeared?
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High School How do you know the size/maximum area of a gravity field
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High School What are the applications of solar sails?
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High School Need Martian Regolith/Soil Simulant. JSC Mars-1
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Undergrad Have you ever wondered why we can't see the other side of the moon?
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Undergrad Do Red Dwarfs Favor Rocky Planets and Host Life?
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Undergrad Can we colonize the Kuiper Belt?
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High School What are the chances of evolution of organisms in space
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Undergrad Guarding Mars' atmosphere with a magnetic shield
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Undergrad Effect of planetary layer densities on trajectories of a satellite
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High School How can gravity act on a photon?
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Undergrad Was There Another Dimension Shaping Time Before Our Known Dimension?
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High School Light Travel Time: Seeing the Past?
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High School Cosmological Redshift: Where Has the Energy Gone?
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Stargazing What is the Explanation for the SECCHI Image of Object Opening a Shield?
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High School What Saturn’s moon, Pan looks like
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Undergrad Could FRBs Power Extraterrestrial Light Sails?
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Graduate How can neutron stars have magnetospheres?
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Graduate Neutron Star EoS: Find the Equation of State
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Undergrad What is a Space-Time Crystal?
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High School What is the vacuum at the Karman line?
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High School Are black holes perfect spheres?
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Graduate What is stochastic heating of very small grains?
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High School How is the Horizon Drop Calculated Due to Earth's Curvature?
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Undergrad Software for Analysis of FITS table/spectra
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Undergrad What Causes GRBs: Ampere's Law or Something Else?
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High School Dark Matter Stars: Burning Hot and Invisible
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High School Space Camera Project: Ideas for STEM & Space Exploration
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Undergrad What would happen if you moved a black hole?
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