Astronomy, Astrophysics, Cosmology Forum

Graduate Is the Universe Ruled by a Simple Algorithm?

Graduate Round One: Big Bang vs. Little Bang

Stargazing Star of David and Total Lunar Eclipse

Graduate What is the alternate universe theory regarding infinite extent and black holes?

Graduate Proton-proton chain reaction in the sun's core

Undergrad Theory Proving Everything Has a Beginning?

Undergrad Is Our Universe Just a Giant Black Hole in an Infinite Cycle?

Graduate Can a Star be Too Big to be Detected?

High School Is the universe infinite and geometrically flat?

Graduate Is Space and Time Discrete According to Eugene Savov's Theory of Interaction?

Graduate The finite bang fallacy rears its head again

Graduate The Universe's Blackbody Spectrum: Why is it Troublesome?

Graduate Is Antimatter Missing Because It Traveled Back in Time?

Graduate Can the universe be bounded by the speed of light?

Graduate Glitter, Balloons and Jell-O, a model of the Universe.

Graduate Are Wet, Rocky Planets Common in the Universe?

Graduate Did Space Have Properties Before the Big Bang?

Graduate Why Do Smaller Black Holes Have Higher Temperatures?

Graduate Did the cosmic background radiation redshift from x-rays to microwaves?

High School Why does element rarity increase with atomic number?

Undergrad Does the universe specify a mass limit?

Graduate Is the universe conscious and alive?

Graduate How the Sun will eventually give Earth a ring system

Undergrad Moon Derives From Earth, Space Object, Study Says: Nat' Geographic.com

Graduate Can Planck-length loops in loop quantum gravity break apart?

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Graduate How much entropy is in the universe?

Graduate Why does the exclusion principle fail to support black hole formation?

Undergrad 2 Black Holes: What Would Happen?

Graduate Universe began at a singualrity at the big bang

Graduate Spacetime has no physical existence

Undergrad Could the universe have a toroidal topology?

Undergrad Gravitational effect on planets when

Graduate Squashed Star Flattens Solar Theory

Graduate What is the Evidence for Dark Energy on Small Scales?

• Poll

Graduate Picturing the history of the world's expansion

Graduate New Theory: Catastrophe Created Mars' Moons: Space.com

Undergrad Einstein's Cosmological Constant

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High School What is dark energy?

Graduate Evidence for a finite universe

Undergrad Martian warm spots could be towers of ice: Newscientists.com

Undergrad Similarities and differences between black holes and black bodies

Graduate How can the universe exist without time?

Undergrad Gravity Collapse on Planets: Physicists' Perspective

Graduate The beginning/end of the universe

Undergrad Finding resources on gravitational and nuclear effects throughout stellar evolution

High School What unit is used to measure volume in space?

Undergrad Asteroid hazard revised: Nature.com

Undergrad Using light-years and age of the universe to calculate size

Graduate How Do Gravity Anomalies Affect Earth's Shape?

High School Does the Cosmological Constant Exist?

High School Newfound Stars are Huge, Powerful and Frantic: Space.com

Graduate J1148+5251 is the most distant object known

Graduate Brief perspective on notion of the big bang

Graduate On the topic of curved spacetimes

High School Distance of a Supernova Candidate from Earth: Is it Safe?

Graduate What is meant by curved space?

Graduate Did the singularity contain all information in the universe?

Graduate Objects that absorb light across the entire spectrum

Graduate Is Gravity Caused by the Motion of Particles in the Fabric of Space?

Undergrad Timeline and conditions in nebula and protostar formation

Undergrad Why didn't primordial hydrogen and helium burn after the Big Bang?

Graduate Lineweaver(May 2003)-web's best cosmology tutorial

Graduate Time zero glitch fades out/less need for inflation

Graduate Searching for a string explanation

Graduate What is our actual Hubble speed ?

Graduate What is Our Actual Hubble Speed and How Does it Relate to CMB?

High School What Lies at the Center of the Universe?

Undergrad Why does light escape from stars if gravity affects it?

High School Why do we only see one side of the moon?

Graduate Why is inflation thought necessary in std. cosm.?

Undergrad Does a planet's rotation affect the gravitational force it exerts?

Graduate Why must a flat universe be infinite if S^1×S^1×S^1 is flat and bounded?

Graduate What question can we ask about Hubble constant measurement?

Graduate What existed before the Big Bang and what caused it?

Graduate The redshift controversy in quasars and AGN

High School What star groups appear on a Hertzsprung-Russell diagram?

Graduate Why Is Understanding Curved Space Essential for Astronomy?

Undergrad Is the number of galaxies infinite?

Graduate Is the Universe Really Not Expanding?

Undergrad Can a Solar System Exist Without a Central Star?