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 Defining Planets: The Case of Pluto and Other Small Bodies
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Undergrad BREAKING: New potentially habitable exoplanet found around Teegarden
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High School How well should Astronomers know General Relativity?
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High School What is Hubble's Luminosity Law?
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Graduate 2-body inspirals that circularize
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Undergrad What's the largest rocky planet with 1g gravity in theory?
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High School The Hubble deep field photos and the edge of the universe
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High School Black holes and the first law of thermodynamics
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Undergrad Most-detailed-ever simulations of a BH solve long standing mystery
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High School Galaxy Database with distances from Earth
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Graduate Can anything capture a black hole?
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High School Is the asteroid belt horizontal or like a dome?
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High School Destroying asteroids shown to be very difficult
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Undergrad The Sun's excess gamma rays and strange dips
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Playing with the Universe Sandbox Software
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Graduate What is the shape of the universe?
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High School Radio source Hercules A and galaxy 3C 348
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High School New theory, our solar system formation, "space bubble"
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High School What is empirically known about the shape and size of the Universe?
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What should we do with the retired Hubble?
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High School Juno -- Coolest space ship in the solar system?
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Undergrad Please teach me about the mass of Sgr A*
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Stargazing How Did Ancient People Calculate Celestial Measurements?
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High School A little logical doubt on Hawking radiation
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Undergrad Terraforming Mars by using Europa
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Undergrad What physical mechanisms are involved in heating planetary bodies?
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Undergrad Questions about the inverse square law
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Undergrad Mars Magnetosphere: New Research on Solar Wind Induced Shielding
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Undergrad How best to photograph the Lyrid meteor shower
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Undergrad Is the Floating Launch Loop a Viable Alternative for Space Exploration?
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Excited to go to Brian Cox's "ADVENTURES IN SPACE & TIME" tonight
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Undergrad Planets or stars that are composed entirely out from Dark Matter.
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Undergrad Cosmic microwave background observations
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Undergrad What happens to spacetime during the expansion of the Universe?
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Undergrad So astronomers really don't have an idea about density of asteroids?
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Graduate Alignment of Quasar Polarizations 0507274
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Graduate How Can I Find Correction Factors for Tropical Years in Historical Data?
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Graduate Black hole accretion disk/jet reference
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Graduate Lyman alpha forest different for different objects?
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Graduate Black Hole Confusion: How Karen Masters Contributed
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Graduate Galactic Evolution: Recent Papers Reveal Important Insights
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Graduate Escape Velocity in GR - PhysicsForums
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Graduate Does the Thermoelectric effect apply in sun?
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Graduate Centripetal forces and gravity
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Graduate What Caused the Ejection of Mu Columbae and AE Aurigae from Orion?
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Graduate Spiral Galaxies: Axes Alignment with Cosmic Voids
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High School Wow. Great picture of exoplanet HR8799e - 129Ly distant
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Graduate How does the electromagnetic force influence a galaxy (if at all)?
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Undergrad Some comments on the 2019 Planetary Defense Conference
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Graduate Saturn's hexagon and his accretion disk jets
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Undergrad Fitting a SiII curve in a supernova spectra
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High School What Causes Meteor Showers and How Can You See Them?
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High School Can a Stronger Black Hole Turn a Weaker One into a White Hole?
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Undergrad For astronomers, what software/languages do you use to handle data?
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Graduate How does one compute frequency bandwidth based on FWHM
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High School What are these bright spots in this zoomable image of the Milky Way?
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High School How to find inverse steradian from arcmin^-2 for density of galaxy
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Undergrad What is the Most Accurate Mass for Rigel?
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Undergrad Discovering Sedna: The Mysterious Red Planetoid Orbiting the Sun
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High School How prevalent is the R language in astronomy research?
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Undergrad Why are pictures of galaxies so clear?
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Graduate Interplanetary electromagnetic field
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Graduate Dark Matter Halo + Virial theorem Q.
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Graduate R136a1: The Most Massive and Luminous Blue Hypergiant Star
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Undergrad Typical light levels at Mars's surface
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Graduate Recent mass estimates for Milky and the Local Group
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Graduate How Many Stars Can Detectable Wobbles Reveal Extrasolar Planets?
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Graduate Anti-Matter- Regular Matter- Pulse Collisions?
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Graduate Black hole singularities and negative space-time
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Graduate New and Improved: Elliptical Transfer Orbits determination procedure.
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Graduate Calculating the Sun's Bending Angle on a Ray of Light
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Stargazing Our absolute speed in the cosmos
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Graduate Coronal Rain -- an interesting article
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Undergrad Could a fully convective Sun double its lifespan?
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Stargazing Short videos on the Messier catalog of deep sky objects
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Undergrad Why the Moon always shows the same face
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High School A different take on the M87 black hole
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Undergrad Disappearing lakes on Titan - seasonal cycles
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Undergrad Uncertainty Over Sextans Galaxies' Group Membership
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Undergrad Are Galaxies Gravitationally Bound?
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Undergrad Does a solar eclipse gamma of 0 mean eclipse goes through 90° altitude?
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High School Any updates on the first-ever Parker perihelion results?
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Trying to get a pen to work in so little to no gravity in space
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Undergrad Exploring the Gravitational Pull of Black Holes: A Perspective on Safe Distances
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High School How common for almost same solar eclipse 17 months later?
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Undergrad M87 Black Hole Photos and the Spin Orientations
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Graduate Question about Condensation of Space
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Graduate Can Space Itself Store Energy?
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Undergrad Orbital velocity of a craft at 4km above the Moon's surface
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High School Is This the First Image of a Black Hole?
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Undergrad Observation of the Messier 87 Super Massive Black Hole
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Undergrad Could the kinetic energy of space junk be recycled?
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High School Gravitational Wave Interference Graphical Computer Simulation
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Graduate Ideas for determining the volume of a rotating object
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High School Earth Orbits of Geostationary Satellites
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Undergrad New LIGO/Virgo event (08-Apr-19)
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Undergrad Probability distribution of angle of asteroid entry to the atmosphere
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High School Temperature regulation in Earth orbit
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Undergrad What is the minimum mass of a neutron star?
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High School Orbits of galaxies in the Coma Cluster
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