Astronomy, Astrophysics, Cosmology Forum

Graduate Can We Truly Conceptualize Quantum Particles and Four-Dimensional Space-Time?

High School Big Bang: Is this statement true?

Undergrad Hawking Radiation: Rate of Decay & Mass

Undergrad Is Anything Else Expanding Like the Universe?

Undergrad Expansion Algorithm: Acceleration Over Time

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Graduate Nagging Doubts just won't go away(song)

Graduate How exactly can CMBR tell us universe age

Undergrad An asteroid is orbiting around the sun at a distance of 4.2

Undergrad Difference between hot and warm pixels?

Undergrad Learn Astrophysics: Self-Study Tutorials & References

Undergrad Why do black bodies emit light at all wavelengths when heated?

Graduate What's the most distant observed star which is not a supernova or quasar?

Undergrad Question regarding movement of universe

Undergrad Question: What is our solar systems galactic position?

Graduate Expansion of space or accelerating speed?

High School Relationship between color of stars and their heat intensitiy

Undergrad Confirming Solar Wind & X-Ray Flux Effects on Earth's Magnetic Field

Graduate Gravitational waves and quantum physics

Graduate Is Antimatter Present in Cosmic Rays?

Undergrad Two Black Holes: Reactions and Behavior

Graduate Smolin's two predictions, circa 2006, True ?

Undergrad Will Converting Mass to Energy Affect the Universe's Temperature?

Graduate How did scientists use WMAP to determine the flatness of the universe?

Stargazing Could a very large telescope see a star as a disk?

High School All the bodies in our solar system alligns in one line?

Undergrad The Possibility of "Pure" Planets

Graduate The Interplanetary Magnetic Field

Undergrad Should the Drake Equation Consider Moons?

Graduate Will it ever be possible to create Matter from a large source of energy ?

Graduate Nagging question about inflation of universe

High School The historical quest for the farthest astrononomical object. Can anyone help me?

Graduate A question about the universe from a non-physicist?

Graduate Could the Early Universe Have Collapsed into Black Holes?

Graduate Origin of the Universe - Byteland.org

Graduate Is the temperature of the universe affected by inflation?

Undergrad Help calculating planets attributes

Graduate Michio Kaku, Parallel Universes, and Galactic EZ Bake Ovens

Undergrad What Caused the Change in Earth's Orbit 125,000 Years Ago?

Graduate Energy conservation in an expanding Universe

Undergrad Did Mars belonged in Earth's Orbit at one time?

Graduate Big Bang Big Schmang, astronomical redshift is an artifact of distance

Graduate The Fermi Paradox: Are We Alone in the Universe?

High School What are some theories of the creation of the universe?

Graduate Calculating strength gravity over light years

Undergrad Why are there Magnetic Fields on the Sun?

Undergrad What is the force of gravity between Andromeda and the Milky Way?

Graduate Asymptote of expected rotation curve velocities

Graduate Reversing a Black Hole: Can It Be Done?

High School Graphs of galaxy rotation curves?

Graduate Big Bang supposedly set matter and energy

Graduate Extended structure of dark matter

Graduate Matter/Anti-Matter: Explaining Space Travel Applications

Graduate Evidence of Rotating Black Holes?

High School Is Astrobiology a Legitimate Scientific Field?

Graduate Black Holes & Stars: Can Stars Rotate BHs Stably?

Graduate Energy, blackholes and whiteholes

Graduate Electron degeneracy pressure in QM

Graduate Is Directed Panspermia the Key to Spreading Life Across the Universe?

Undergrad How Does the Sun's Motion Appear from Earth's Perspective?

Graduate The First Particles After the Big Bang: What Do We Know?

Undergrad Wavelengths increasing with space?

Undergrad Tracking the Sun's Galactic Orbit: Uncovering the Origins of Our Solar System

Graduate Hydrostatic Equilibrium in General Relativity

Graduate Question on redshift/expanding universe

Graduate Determining Distances to Galaxies

Graduate Can the Big Crunch Theory Allow for Time Reversal?

Graduate Limiting value of Hubble constant

High School How To measure Moon Orbital Velocity ?

Graduate 7-year WMAP data: cosmo implications

Graduate When did H2O develop during the last 13.5 b y?

Undergrad What is the relation between gravity and light?

Graduate Space-time fabric distortion measuring

Undergrad Coordinate systems in the solar system?

Graduate Unraveling the Mysteries of Vacuum Genesis

Graduate Gravitons and gravity in a asteroid-planet interaction

High School Sun Expansion: What Would Humans Do?

Undergrad Force of Gravity in terms of Density

Undergrad What Happens When You Go Through a Wormhole?

Graduate Accelerating Universe, Relativistic Mass and Dark Energy

Graduate The Universe's Possible Cyclic Existence

Graduate Is Gravity Truly an Entropic Force in the Universe?

High School Observing Objects at 45N 90W: Simple Astronomy Question

Graduate Omega Point Theory: Plausible or Pseudoscience?

Graduate Mass Below Jeans Mass: Implications for Systems

Undergrad Formulas for Elliptical Orbits X,Y,Z Co-Ordinates

Graduate Observing Bright Stars: Project Checkup

Undergrad Where does the missing energy go in redshift?

Graduate Detection of gravitational waves

High School How Can Beginners Learn About Black Holes and Space?

Graduate Hi, i have a question about Gravitons

Graduate The Universe Exists Because It Has To

Undergrad Does Hydrogen Alone Lead to Life in the Universe?

Undergrad How Do Black Holes Influence the Path of Light?

Undergrad Could Titan Support Life Like Earth in the Future?

Undergrad Electromagnetic frequency question

Undergrad Betelgeuse Supernova: Did It Happen?

Stargazing Building Telescope Signting Laser