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.
Undergrad Fictional Earthbound Asteroid Collision
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Undergrad Where there more planets being formed?
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Undergrad Black hole - frequencies used for viewing
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Undergrad Is a black hole a quasar or blazar?
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Undergrad Could there be a portal inside or near the sun?
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Undergrad Can a planet/moon's atmosphere generate a magnetic field?
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Undergrad Why can't Light Escape Black Holes?
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Undergrad Is There a Formula for Calculating Star Altitude and Azimuth Over Time?
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Undergrad Sun's Temperature: Is the Sun Charged?
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Undergrad Supernova that created our solar system
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Undergrad Is it possible I saw a luminous cosmic ray track?
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Undergrad How Long Do Black Holes Last Before Vaporizing?
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Undergrad Pluto's New Moon and Potential Collision Risks for New Horizons Probe
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Undergrad How Do You Calculate Angular Separation of Stars Using Different Coordinates?
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Undergrad How Does the Gravitational Force Equation Change with 1/r^3?
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Undergrad Is the Drake Equation Overestimating Intelligent Life in the Universe?
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Undergrad Does time move faster while measured from space or from earth?
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Undergrad 10 light years but destroyed 6000 years ago?
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Undergrad What is the width of the Lagrange points?
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Undergrad Do scientists know why planets orbit stars on the same dimentional plane?
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Undergrad Speed Of Light In Relation To The Size Of The Universe
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Undergrad When did they discover the Gas Giants were fluid?
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Undergrad What happens to you if you get pulled into a black hole?
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Undergrad How is molecular hydrogen detected?
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Undergrad Angular momentum and eccentricity
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Undergrad Speed through the universe we are moving?
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Undergrad Calculating orbits of moons, when both the planet and star are involved.
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Undergrad Size of the Universe? I'm confused.
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Undergrad Dark matter is the thread connecting galaxy clusters
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Undergrad Venus Spinning Slower Than Thought
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Undergrad What if time is not linear? Can it be experienced out of sequence?
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Undergrad Is space really absolutely nothing?
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Undergrad Are Black Holes Really Black and Just Holes?
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Undergrad First post a question about Black Holes and Gravity
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Undergrad Acceleration due to gravity in a galaxy?
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Undergrad Active Volcano in Venus: Unveiling the Mystery
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Undergrad Matter, energy, space, time and gravity
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Undergrad What Powers a Supernova Explosion?
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Undergrad How big and bright is the Sun seen from 120 AU?
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Undergrad Should the Astronomical Unit be replaced by the Light Second/Light Minute Etc.?
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Undergrad Astro Physics Research for Undergrads
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Undergrad Can quasar gets converted into pulsar?
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Undergrad G-Forces in Space and the Human Body
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Undergrad Relation between the sol, mass, gravity, and black holes
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Undergrad Heliosphere's Long-theorized Bow Shock Does Not Exist
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Undergrad Position of the Sun and Moon in ECEF coordinates
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Undergrad Can gravity increase on its own?
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Undergrad Gravitation - Why don't planets smash into each other?
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Undergrad Mysterious Night Sky Object - Help?
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Undergrad Why Are Red Giants More Luminous Than Other Stars?
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Undergrad Are All Stars the Same Size Due to Nuclear Fusion?
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Undergrad Question about detection of very far away objects
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Undergrad Is Oxygen More Abundant Than Carbon in the Universe Due to Nuclear Fusion?
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Undergrad How to calculate g-forces on pilots in climbs, dives, outer space
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Undergrad When does helium fusion occur in an evolution of star?
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Undergrad Why Do We See So Many Gamma Ray Bursts?
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Undergrad How delicate is the Earth's Orbit?
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Undergrad Classification of stars by spectrum
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Undergrad Measuring Radial Velocity with Amateur Equipment
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Undergrad How are panatery Nebula formed and when do they die
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Undergrad The stellar evolution. Low Mass stars
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Undergrad Why Do We Use Angular Size Instead of Steradian for Objects in the Night Sky?
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Undergrad Spectrum of Stars: Explaining the Spectral Lines of Stars
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Undergrad What causes the pressure in a neutron star?
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Undergrad Width of Spectral Lines: Explaining Main Sequence Star Determination
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Undergrad So much of diversity in universe.
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Undergrad Definition of a Planet (and other stuff)
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Undergrad Can anyone recommend any astronomy books
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Undergrad Transiting Exoplanet Light Curve
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Undergrad What Does a Redshift Calculation of 2.5 Mean?
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Undergrad Length of the life of a red supergiant.
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Undergrad The Mystery of the Universe's Fate
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Undergrad Does 4th Dimension Space Really Exist Beyond Our Perception?
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Undergrad Question about the fabric of space
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Undergrad Distance of planets from stars and revolution
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Undergrad Could the Milky Way's Dense Oort Cloud Mean a Richer Galactic Landscape?
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Undergrad The atmosphere of titan and mars
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Undergrad Is Moon so crucial for axial tilt stability of the planet?
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Undergrad What Does the Solar Spectrum Look Like at Night?
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Undergrad Spinning Magnets in Space: Physics & Hydro Generator
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Undergrad Is the process of fusion really enough to keep stars from imploding?
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Undergrad What happens to shrapnel if a hand grenade explodes in solar orbit?
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Undergrad Did the Milky Way Have a Galactic Collision in the Past?
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Undergrad Hubble Law - recession velcoity?
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Undergrad Dark Matter, any new news about it?
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Undergrad Which is Brighter: Gamma Ray Bursters or Quasars?
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Undergrad Our weight if the earth spins faster
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Undergrad Trying to understand basic gravitation
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Undergrad Why do people think red shift is caused by big bang?
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Undergrad Type 2 Supernova: Energy Source & Type 1 Comparison
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Undergrad A question regarding the B-V measurements of stars
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Undergrad Source of Hydrogen: Where Does Our Sun Get Its Fuel?
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Undergrad What is the Event Horizon of a Black Hole?
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Undergrad Understanding Stellar Lifespans: Comparing Luminosity & Mass
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Undergrad Could SF6, Photosynthetic Bacteria, Hydrogen, and Ozone Make Mars Habitable?
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Undergrad Layman question about distance and speed of light
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Undergrad Solar elements and their placement
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Undergrad Why Isn't the Moon's Shadow Line Perpendicular to the Sun-Moon Line?
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Undergrad Are there any fields of astrophysics with no general relativity?
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Undergrad How Does Visible Light from Quasars Reach Us?
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