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 Why Did Ancient Astronomers Believe the Earth Was Round?
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Graduate Playing with Coordinate Systems (Spherical Geometry)
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High School Do stars actually exist beyond our solar system?
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Graduate Need help understanding Collapsed Configurations of stellar Mass
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Graduate Accretion Disk Density & Fusion: What You Need to Know
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Graduate Can an Artificial Satellite Move Opposite in a Geostationary Orbit?
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Graduate Planetary Positions according to JPL Data
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Graduate Seeing the milky way in it's past
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Graduate How is information conserved in a black hole?
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So I was just watching a naked science episode on discovery about
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Could a Subsurface Launched Water Vehicle Create a Tidal Wave?
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Undergrad Angular Momentum & Artificial Gravity in a Spinning Space Station
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Graduate Precession of the Sun's rotation axis
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Graduate Planet Formation: Unsolved Questions in Solar System Origin
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Undergrad Determining the radius of a star
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Undergrad Rotating planets and magnetic fields
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Why do domains expand in a way that makes each point equivalent?
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Undergrad Big bang, schmig bang: everything's just shrinking
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Undergrad Send Radio Signals to Other Stars: Accounting for Arrival
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Undergrad What are the forces on an object in near-Earth orbit?
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Graduate Speed of light in intergalactic space
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High School Would a human be able to see a nebula if they were close enough?
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Graduate Tracking Unstable Elliptical Orbits for College-Educated Scientists
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Graduate Doubt about the polar equation of a Kepler orbit
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Undergrad The Mystery: The Causes of Gravity Explained
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Best month for observing (North East USA)
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Graduate Is there a Path for Galaxies Moving Away?
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Undergrad Pressurization in an enclosed space
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Graduate Relative Stargazing: Adjusting Time Distortion for True Representation
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Graduate Where Does Gravitational Potential Energy Originate?
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Graduate Black Hole Plus Charge: Unsolved Mystery
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Graduate Is an Expanding Universe Hidden Beyond Black Holes?
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High School Is the Galactic Alignment Real or a Myth?
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Undergrad Where can I find the actual velocity and position of earth at a specific time?
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Graduate How Do You Describe the Motion of Two Bodies Relative to Their Center of Mass?
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Undergrad Dwarf Stars: Detecting Low-Mass Stars in the Universe
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Graduate Why We Have Heavy Elements on Earth
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High School Why Do Planets Maintain Distance Despite Gravitational Attraction?
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Graduate Why is the universe shaped like a pebble?
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Graduate Is it possible to use a black hole as a mirror to the past ?
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High School Unraveling the Mystery of Light From Stars
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Graduate My black hole white whole dark matter/energy reversed time theory.
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Graduate How much dark matter is in the Sun, and does it have any
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Graduate Can We Model Universes with Different Physical Constants?
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High School Why Can't Objects Exceed the Speed of Light in Space?
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Undergrad A simple algorithm, with no use of the mass, to reproduce the 3 laws of Kepler
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Undergrad Exploring Orbital Velocity: Significance and Applications
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Graduate Accelerated expansion and lightcurves
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Graduate What is the Origin of the Repelling Force Between Dark Energy and Matter?
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Graduate Does the uncertainty principle mean that black hole has to become a big bang?
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Graduate Black Hole Annihilation & Photon Interaction
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Graduate Euler rotations in galactic plane to change to equatorial
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Graduate Core Drop: A Simulation for Sealing Oil/Gas Conduits and Beyond
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High School Stars from outside the atmosphere
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High School Solar Flare Danger: Worst Damages & Preparing for X Class
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Graduate What Happens When a Black Hole Swallows Another Black Hole?
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Astronomy Software - Professional Recommendations
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Graduate Can Sustained Nuclear Chain Reactions Achieve Constant Acceleration in Space?
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Undergrad Can Black Holes Break the Rules of Time?
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Graduate Universe expanded faster than the speed of light during inflation
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Undergrad Actual year/day vs earth's movement
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Graduate Can we tell apart antimatter from matter?
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Undergrad Questions Regarding an Alternate Planet
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Undergrad What Is the Difference Between Dark Matter and Dark Energy?
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Graduate Black Holes and Variable Infinities
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High School What type of athmosphere would a planet with red and pink trees have
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High School Could Harvesting Materials from the Solar System Affect Earth's Orbit?
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Undergrad Could a planet ever be split into two halves?
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High School Geosynchronous vs geo-stable orbit?
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Graduate Could Jupiter Be Ignited for Fusion?
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High School When do neutron stars, supernovas, and pulsars form during a star's life?
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Undergrad How does the space station survive the damages caused by debris in space?
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Graduate Convert ICRS to ECI: Engineer's Guide
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Stargazing About the wave nature theory In the case of Lunar Eclipse
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Undergrad What is the best scientific method to deep space travel
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Stargazing Eclipse, reflected light, Alternate Universe?
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High School Can You Outrace the Sun? Debating the Possibility and Necessary Speed in MPH
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Graduate Solar spectral irradiance at earth's TOA
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Graduate Is MC22 a Neutron Star or a Black Hole?
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Undergrad Shockwaves and thermal energy created by a dying star
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Graduate Black Hole Binding Energy Radiation
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Graduate How Much Starlight is in the Galaxy and Can it Power Advanced Civilizations?
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Graduate Estimating Exoplanet Temperatures
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Graduate Is Dark Matter and Dark Energy Present on Earth?
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Undergrad Eternal universe vs finite life of stars
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Undergrad What does light emitted by quasar convey?
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Graduate Why Are Black Holes Considered Singularities Despite Neutrino Emission?
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Graduate Would a specific change in earth's rate of precession mean no seasons?
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Graduate Disappearing Sunspots, Minus 50 Gauss/yr
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Undergrad Why Do Vectors Cause Issues in My Orbital Simulation?
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Mystery of the Bright "Star" - Did You Spot It?
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Undergrad Calculating distance using absolute and apparent visual magnitudes
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Graduate Hubbles vs. Dark Energy: Debunking the Mystery of Galaxy Expansion"
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Graduate Find radial velocity of star from orbiting body
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Undergrad Where are the starting points for measuring celestial coordinates?
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Undergrad Formation of the Sun: How Did Hydrogen & Helium Form the Core?
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Undergrad Launch Loop to Space: Questions & Answers
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Undergrad GPS - Doubt regarding RMC speed value in NMEA files
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Graduate Orbital transfers and escape velocity: relationship
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Undergrad Reaching Alpha Centauri in human lifetime
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