Astronomy, Astrophysics, Cosmology Forum

Graduate What are the origins of Moon Mascons?

Graduate Fate of Universe: Is c/H an Asymptotic Singularity?

Graduate Sources of noise in geostationary satellite attitude determination simulation

Undergrad Can White Holes Form Naturally or Are They Only Theoretical?

Graduate If the strength of gravity levels off, could black holes be unphysical?

Graduate Why is this highly distributed array a bad idea?

Graduate How Does Uranus' Tilt Influence the Orbits of Its Moons?

Graduate Can we see the Earth in the past

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Graduate How did the cosmos form w/o observers around?

Graduate Looking for online solar astronomy book/course

Undergrad Stars: Fixed or Moving? | RA, Dec & Julian Date

Graduate Perhaps we live in a black hole?

Undergrad Where does the energy of gravity come from?

Undergrad Could an ExoEarth with 70% Land and 30% Water Host Unique Life Forms?

Graduate Can Antimatter Catalysed Engines Propel Us Across the Galaxy?

Undergrad Reference book about astrophysics please

High School Astronomy and astrophysics, are they the same?

Graduate Is the Universe Both Flat and Accelerating?

Undergrad Reccomend a stellar database for my software program?

Undergrad The densest areas in the universe

Undergrad Why Doesn't Earth Fall Into the Sun?

High School Can We Overcome the Challenges of Space Travel Beyond Our Solar System?

High School Catastrophic event stopped growth of galaxy{ON News}

Graduate Why Were Early Universe Stars More Massive Than Today's Stars?

High School Explaining Black Holes to 5th Graders

Undergrad What are Black Holes and How Do They Differ from Dense Balls of Matter?

Graduate Does expansion exist on the micro level as well as the galactic level?

Graduate Heat Applied to Black Hole: What Happens?

Graduate Speed of the Sun: Facts & Measurements

Graduate What ideas does the discrepancy of CMB photons affect?

Graduate Virtual particule and event horizon

Undergrad Why are people saying that the radius of the observable universe is 46.5 ly

Graduate Pair-Instability Supernovae & No Black Hole Remnant

Graduate How Many Photons Reach the Hubble Telescope from a Distant Star in a Day?

Graduate Paradox of the Universe - Physics or Voodoo Philosophy?

Graduate Understanding Entropy: Speculations on the Properties of Our Universe and Beyond

Graduate Changeover from deceleration to acceleration

Graduate How Do Black Holes Affect Photons and What Mysteries Remain?

Graduate How Does the Solar System's Angular Velocity Change Over Time?

Graduate Effects of moon on prehistoric earth

Graduate Cosmic background radiation - redshift, blueshift, anisotropies

Graduate Question about black holes and graviational singularities.

Graduate What is the role of gravity in the cosmological redshift?

Graduate Could advanced technology artificially accelerate the evolution of our sun?

Graduate Dark energy as an entropic force?

Graduate How can all the matter in the universe start out as one point?

Graduate What are the Quantum Mechanics Situations Allowing Light to Escape Black Holes?

Graduate No Boundry Proposal: Hartle & Hawking's Theory Explained

Graduate Is Gravity Weakening as the Universe Expands?

Undergrad Changing Earth's Orbit: How Has the Speed Around the Sun Evolved?

Graduate Can Quantum Tunneling Enable Faster-Than-Light Communication?

Stargazing Celestron Astromaster 114EQ Reflecting Telescope: A Beginner's Guide

Graduate There is no such thing as empty space in an atom. True?

Graduate Copernican Principle and Metric Expansion

Graduate The Big Bang.. just one little question

High School How do we know what the sun is made of?

Graduate The formation of Galaxy Clusters from density fluctuations in the early Universe

Undergrad Universe expansion, then deceleration, then acceleration?

Graduate Absolute color - magnitude diagram

Undergrad Visualizing daily life through broader EM spectrum

Graduate Confusion with conversion for the Hubble Constant

Graduate Blackholes In The Early Universe

Undergrad Need Controversial Topic for an Eng102 Class

Graduate Effective universe cutoff at z=1.73, is this circular logic?

Graduate Dark matter: galaxy vs. super-cluster evidence

Graduate What changes the rate of inflation

Graduate Could Expansion Explain Gravity Mathematically?

Graduate Unraveling the Mystery of the Universe's Dimension: Is it a Membrane?

Undergrad Calculate the final velocity of an object accelerating towards a mass

Graduate So what happen to a shuttle that enters a black hole?

Undergrad Exploring Kinetic Energy & Recessional Velocity

Undergrad Build Space Dirigibles: Alternative Freighter Idea

Graduate Bolometric Magnitude and H-R diagram

Undergrad *quantitative* fun with the cosmos (easy)

Undergrad Variation of gravity along latitude

Graduate How do I calculate the phase integral for the Bond albedo in astrophysics?

Graduate Is Relative Motion Evidence of a Static Aether in Orbital Physics?

Graduate Finite Big Bang, Infinite universe?

Undergrad Critical Expansion Rate: The Key to Understanding the Evolution of the Universe

Graduate Big Bang - galaxies not mapping onto a point

Undergrad Will we go the the past if we could go faster than speed of light?

Graduate Dark Matter Particles: Not Atoms? Strings? Bubbles?

Undergrad A small finite universe and some wierd thoughts from it

Graduate Current eff. universe limited to redshift 1.73

Graduate Constants and multiverse possibilities

Graduate Can we see the earth in the past ?

Graduate Formula of anti-gravitational force

Graduate Finite Universe: Why Postulate an Infinite Universe?

Graduate Center of the Universe (thought experiment)