Astronomy, Astrophysics, Cosmology Forum

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Join in expert discussion on the topics of Astronomy, astrophysics and cosmology. This may include discussion on celestial objects, space, and the physical universe as a whole. Mainstream science only.
Graduate Unravelling the Mysteries of Space and Light
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Graduate Expansion-based cooling during Big Bang
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Undergrad Average distance form earth=384,403,000 meters
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Graduate Flat Velocity Curve: Newton vs MOND Theory
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Graduate A universe that supports intelligent life is likely to
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Graduate Discussing Gliese 710's 86% Chance of Hitting the Solar System
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Stargazing XT10i and a Orion Skyview pro 120mm refractor
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Undergrad Determining a Safe Distance from a GRB
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High School The big bang theory and why i think its wrong
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Graduate Extrasolar Planets: Questions & Answers
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Graduate Help Calculate Velocity of Supernova Remnant Knot
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Stargazing Suggesting a beginners telescope
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Graduate Does the Cosmic Coriolis Effect Influence Galaxy Spin Direction?
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Graduate Could Gravitons Be the Missing Link to Understanding Dark Matter?
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High School CERN and Switzerland Prevail: Celebrating a Historical Moment!
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Graduate Big-bang versus observational event horizon
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Undergrad Big Bang: Has Universe Always Been Expanding?
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Graduate Understanding the Relationship Between the RW Line Element and Universe Density
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Undergrad What Makes Living in a Spaceship Without Gravity So Unique?
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Undergrad Mathematics & Astrophysics: Importance & Overview
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Undergrad Accuracy of the exploding asteroids in The Empire Strikes Back movie
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Graduate Direct observation of early universe's higher density
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Graduate Cosmological Constant: Why Lambda Units are 1/m^2
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Graduate Could Hydrogen and Helium Be the Key to Dark Matter and Dark Energy?
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Graduate Harvesting Asteroids: Soft Landing Nickel/Iron Megaton on Earth?
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High School Clarification about gravity and floating in space
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Graduate Orbit around the Galactic Center
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High School Dsitribution of Stars and Galaxies?
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Graduate Intro, and a couple of questions
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High School What was earth like 200,000 years ago?
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Graduate CMB: L to Angle Conversion Simplified
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Dark Matter/Dark Energy/unified constant? I need answers
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High School Do Most Stars Have Orbiting Planets?
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Undergrad How do I map a celestial object's declination ?
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Graduate Could anything else cause redshift?
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High School S: Understanding Space-Time Confusion
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Undergrad Blue Shift & Red Shift: Explaining the Universe
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High School How much closer was the Moon say 200,000 years ago?
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Graduate What are Kruskal-Szekeres Coordinates in Relation to a Static Black Hole?
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Graduate Are Galaxies at the Edge of the Universe Concentrated in One Area?
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Graduate Derivation of Earth's Precession: Sun's Torque & Causes
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Graduate Exploring Supermassive Black Holes: Understanding Orbiting Stars and Gravity
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Graduate Can Dark Matter Evaporate in Black Holes? A Theoretical Problem
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Graduate Cyclic Universe: Exploring the Theory of Multiple Big Crunches and the Big Rip
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Graduate Theoretical and actual limits to electromagnetic frequencies?
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Graduate Is Space Pushing Galaxies Apart in the Expansion of the Universe?
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Graduate Deterministic Universe (3 propositions)
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Undergrad How Far from a Gamma Ray Burst to Match Solar Radiation at Earth?
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Graduate Is Life on Jupiter's Moons More Probable Than on Earth-like Planets?
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High School Why is the Earth hotter in July and cooler in January?
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Graduate Cosmic Microwave Background Origin
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Graduate Past eternal universe in inflationary models
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Graduate Circular Polarization and the Search for Semi-Intelligent Life
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Graduate Why do we Need a Unified Theory?
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Graduate Solve CMB Peak Wavelength & Quark Fates | Astronomy Problem Help
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Graduate Is My Understanding of Light Spheres in A Brief History of Time Correct?
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High School Unveiling the Mysterious 'Black Star': New Astronomical Discovery
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Graduate Stellar Pancaking, anyone familiar with it?
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High School What Does Our Solar System Rotate Around?
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Undergrad Galactic Center Wobble: A Look at the Dynamics
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Graduate Would a graviton follow the geodesic?
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Graduate Understanding the Physical Significance of 'a' in Kepler Orbit Equation
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Graduate How do vortices help astronomical structures to form?
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Undergrad The Everlasting Cycle of the Universe
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Undergrad Advice for amateur (Matter/Space)
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Graduate State of knowledge of dark matter distribution vs Fermi Paradox:Zoo
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Undergrad Food for thought, is law of inertia wronghum
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High School Picturing Galaxies: How We Capture Outer Space
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Graduate Creating Matter from Energy: Is It Just Theoretical?
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Graduate The Universe: 4 Forces Constant Forever?
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Graduate Three Body Problem - Earth, Sun, and Moon
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Graduate Curvatue Cosmology for a static stable universe
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Graduate Proving that there is one center of the universe.
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Graduate Three Questions About Energy-Mass Equivalence
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Undergrad Earth's Axis: What is Figure Axis & Have Astronomers Had to Readjust?
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Graduate Is Zero Gravity in Space Just a Big Free Fall?
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High School Protecting Telescopes from High Humidity: A Practical Solution?
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Graduate Can Supernovas Disrupt Entire Stars Without Remnant?
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Graduate Inflation and Assuming the 'just so'
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Undergrad What drives the magnetic field of Earth and how does gravity play a role?
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Graduate Capturing Light Leaving Its Source: Is it Possible?
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Graduate The Origin of the Universe: A Matter of Energy and Motion?
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Graduate Looking back in time to the big bang
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Graduate Calculate Redshift Where Radiation and Matter Energy Densities Equal
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Graduate What is Dark Matter? - Learn Its Properties & Particles
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Undergrad Why Is Helium Important in the History of Star Formation?
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Graduate Understand Time Measurements After Big Bang
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Undergrad Can the Sun Appear to Revolve Around the Earth from Certain Points in Space?
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Graduate How Can I Improve the Accuracy of My Geostationary Orbit Propagator?
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High School Could Traveling Against the Earth's Rotation Cause a Sunset-Sunrise Reversal?
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Graduate Calculating age of the universe using redshift?
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If the universe is infinite, are there planets made out of swiss cheese
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Graduate What are the origins of Moon Mascons?
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Graduate Fate of Universe: Is c/H an Asymptotic Singularity?
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Graduate Sources of noise in geostationary satellite attitude determination simulation
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Undergrad Can White Holes Form Naturally or Are They Only Theoretical?
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Graduate If the strength of gravity levels off, could black holes be unphysical?
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What If Comet SL9 Strikes Mars, the Moon, or Venus?
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Graduate Why is this highly distributed array a bad idea?
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Graduate How Does Uranus' Tilt Influence the Orbits of Its Moons?
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