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 How Can I Derive the Kepler Equation?
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Is the Milky Way Visible with a New Wide-Angle Lens in Sydney's Night Sky?
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Graduate Astronomers discover how lowly dwarf galaxy becomes star-forming powerhouse
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China aims to be first to land probe on moon's far side
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Graduate Celeste: A new model for cataloging the universe
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Graduate How do I calculate the event horizon?
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Undergrad Young gas giants fly close to their suns
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Undergrad Could a Tidal Lock Cause the Earth to Stop Rotating?
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Graduate Time between farthest and closest distance from Jupiter
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Graduate Heory of Spacetime Curvature and Gravity
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Graduate Can Neutrinos Prevent Cavities?
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Solar Tornado Captured by NASA's SDO Probe
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What can we learn about the Milky Way using an 85mm lens and static tripod?
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Graduate The Age Distribution of Intelligent Life in the Milky Way
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Graduate Questions About Contact in the Movie
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Graduate What defines the surface of the Sun?
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Undergrad Data for Earth Orbiting Satellite & Ionosphere: Research Help
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Clear Space Technologies: Recycling & Repurposing Orbital Space Debris
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High School Presenting to middle-schoolers on black holes - suggestions?
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Undergrad A question about the flatness of galaxies
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Graduate Novel idea for space travel (launch track around the moon)
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Yay, starting my Astronomy MSc this month
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Graduate Apple and Worm: Patching holes in spacetime game
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Undergrad How Can Empty Space Be Curved?
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Undergrad Q: Personal magnetic fields: Protection from space radiation
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Graduate Can the Universe's Acceleration be Measured in m/s^2 Instead of m/s/pc?
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Undergrad Help with Aladin Contrast for Galaxies, Stars & Planets
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Simulation of New Horizons arrival day at Pluto
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Undergrad Elliptical Orbit of Sun Around Milky Way
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High School A little solar activity this week
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Undergrad Confusion About the Physics of Orbiting Bodies
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Undergrad Blackbody Radiation and the Inverse Square Law
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Undergrad Can time exist without space and vice versa
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Graduate IceCube sees astrophysical neutrinos
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A shot I got of Jupiter & moons last night
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Graduate Are We an Early Intelligent Species in the Universe?
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Graduate Interaction Between Light and Black Holes
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Undergrad Traveling to space aging more slowly is true?
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RIP Jacob Bekenstein (Black Hole Entropy)
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Undergrad How do we know galaxies are exactly where we see them?
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Undergrad Minimum possible warning for deadly comet/asteroid
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High School How to convert Ohms to luminosity?
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Stargazing What is the difference between linear and angular magnitude in telescopes?
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Graduate Hydrogen/Helium Emission Spectra Temperature Dependence
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Graduate Gamma ray bursts (GRB) and distribution of life
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Graduate Understanding the Metric Tensor: Definition, Equations, and Properties
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Graduate How do we know everything in the universe is matter? (versus antimatter)
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Undergrad Distances in km/s vs mega parsecs or light years
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High School Galaxies Colliding: A Rare Phenomenon in Space
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Graduate Can we use counter-rotating rings to generate power on space
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Ready to Watch the Perseid Shower? Join Me for a Clear Sky Viewing!
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Graduate Does Gravity Cause Heat Flow to the Center of the Earth?
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Graduate Earth mimics supernovae with TGFs. No one knows how.
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Graduate How Far Can We Exclude Alien EM Broadcasts in Our Light Cone?
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How big is an object in empty space?
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Graduate Can a micro black hole be created Past the horizon of a large black hole
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Undergrad Why isn't the Oort Cloud shaped like a disk?
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High School Solar day and the amount of Earth's rotation
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Graduate How many Hubble Spheres are in the universe?
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Graduate Why dark matter distribution is so different in galaxies?
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Graduate Questions about black holes and wormholes
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High School Existence of Universe: How Scientists Determine Galaxy Existence
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Graduate Neutron Star Questions: Answers to Max/Min Mass & More
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Graduate A Question Regarding Black Holes
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Undergrad Gravitational Influence of Stars in a Galaxy
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Undergrad Thermodynamics behind the heating of Saturn's moon Enceladus
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Undergrad Which field deals with this(Astronomy,Astrophysics) ?
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Graduate Do the black holes have infinite mass ?
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Undergrad Galactic Black Holes: % & Types Explored
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Graduate The case for [or against] dark matter
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Undergrad How the satellite parts get damaged
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High School Lunar and Solar eclipse - same times a year?
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Graduate Kepler's Second Law - reaching an unsolvable equation?
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High School Viscosity of Space: Theory & Evidence
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Undergrad Neil deGrass Tyson "Orbital Erosion"
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High School The sun at midnight from North Pole
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Graduate Understanding the Effects of Black Hole Collisions
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Undergrad Help with Venus Transit AU calculations
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Undergrad Peanut-shaped near-Earth asteroid imaged by radar
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How is the ISS Captured Using a Telephoto Lens?
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Undergrad New rocky exoplanet discovered is the closest to Earth
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Undergrad How did planets get their Orbits?
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High School What is the center of the universe?
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Graduate Infrared Yoga: Is It Possible for Aliens to Learn?
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Undergrad Astrophysics uses wave optics or geometrical optics?
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Graduate Is Terraforming Uranus And Neptune Possible?
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Graduate Which dimension does the black hole belongs?
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High School How Fast Is the Moon Moving Away from Earth?
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Graduate Can Black Holes Truly Absorb All Matter and Energy?
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Graduate Earth's Orbit & Fleming's Left Hand Rule
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Undergrad Term for space in front of the expanding universe.
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Graduate Measuring the entropy of the universe?
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Undergrad Earth-Like Planet orbits Sun-Like Star
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Graduate Is there a theoretical min. size/mass limit to a black hole?
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Undergrad Is the Fermi Gamma Ray Detector Capable of Detecting Individual Photons?
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Undergrad Guidelines for including "atmosphere" in a body's "diameter"
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Graduate What does it mean to have a Black Hole Spike?
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Graduate Are Saturn's Rings Caused by Fractal Structures?
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Graduate Photons and Space-Time Expansion
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Undergrad Intersecting Orbits of Binary Stars: A Visual Guide
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