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.
Space Ship One (SS1): Breaking the Sound Barrier and Making History
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Is Vega visible from Atlanta now?
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SpaceShipOne reached 100 km this morning
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Private Rocket Plane Makes Historic Space Flight
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Is the Red Shift of Distant Stars Really Due to Cosmic Expansion?
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If the Earth was a giant metal cube..
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Nonspecialist qstns:ie, massless=no space?
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What is the nearest supernova candidate (maybe Betelguese?)
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How gravity arises from spacetime curvature?
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What was the bright flash I saw in the sky last night?
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What happens to a star in orbit around a black hole?
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Extra-solar Planets : Mass vs. Orbital Distance
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Sedna's Orbit: How Gravity Keeps it Tied to Our Solar System
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Intergalactic doldrums - flotsam and jetsam
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Understanding Binary Stars: Types and Definitions
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Are there advantages to launching space missions from the Arctic/North Pole?
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Universe Expansion: How Space is Created
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Move something about the size of the ISS
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Universe Ingredients: What Makes Up Our Universe?
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Is Spacetime a Dynamic Entity Influenced by Motion and Antimatter?
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Can the Space-Buoy Determine Universal Rest in a Relativistic Inertial Frame?
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Kerry's vision for the space program
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Is Quantizing Spacetime Possible According to the 2nd Law of Thermodynamics?
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Can Time and Space has Duality ?
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Whatever happened to the Mars rovers?
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  • Poll Poll
Evaluate my brand new program satelite motion around earth
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Challenges of Life on Extra-Solar Planets: A Review of Latest Findings
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Venus Transit: Why Does It Look Like It Changes Direction?
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Shapiro Effect and Gravitational Lensing
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Help Distance between Mu Leporis & Nihal?
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Transit of Venus mathematics please.
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Voyager: How Did They Navigate Unknown Worlds?
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How Does Gravity and Center Influence Orbit in Astro-Physics?
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Detailed Mass-Luminosity Relation for Main Sequence Stars
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Odd Black Hole Defies Explanation : space.com
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Most complex extraterrestrial molecule
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Temp increase of sun from photosphere to corona
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Red Shift caused by space itself ?
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Calculating Minimum Distance between Elliptical Orbits | Orbital Distance Forum
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  • Poll Poll
Stargazing What's Happening for the June 8th Eclipse of Venus?
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Conjunction of Venus and Sun a rare event
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How Did Time Begin After the Big Bang?
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Question-can a neutron star shed mass?
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Universe's Energy Creation and Big Bang: 4 Questions Answered
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Modeling a Star: Struggling with Newton-Raphson Technique
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What periodic motion is used as a reference
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Cosmology: Expansion & Redshift Explained
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Is Our Understanding of Gravity and Entropy Incomplete?
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Orientation of virtual particle pairs in local fields?
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Does Zero Point Energy Influence Gravitational Effects in Space?
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Size of universe and uncertainty principle
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How fast is earth moving trough space?
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Where can I find comprehensive formulas for Celestial Mechanics?
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Why do all the planets orbit the sun?
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How Do I Convert the Gravitational Constant to Pixels?
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Analogous Hawking Radiation from Astrophysical Black Hole Accretion
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Can Dark Energy Influence the Minimum Unit of Space in the Universe?
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Dual Planetary Life: Is It Possible?
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Can an Asteroid Really Destroy Earth in 800 Years?
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How the calculated total velocity derived ?
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Redshift & Expansion: What Else Is There?
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A simple explination of why clocks move faster in space
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Stargazing Spitzer Telescope spies 'youngest' planet
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What Would a Martian Calendar Look Like for Well-Established Colonies?
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Predict Clear Skies: Easy Ways to Forecast Stargazing Nights
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Superconductive Planck/Scale Space
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When will the Stars Die Out? - What Makes It?
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What are the Characteristics of Short Gamma Ray Bursts?
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Entering the Sphere of Influence
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Investigating Anomalous Acceleration of Pioneer 10
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And the question remains, is our Universe really a Hologram?
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Understanding Galaxy Formation and the Factors Influencing Their Size
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Virtual particles and cosmological expansion
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Looking for a *3D navigable* star map.
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Technical name for the moon is Irene
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How Can I Simulate a Star Collision on a Computer?
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Compatibility of Orion Solar Filter for Celestron 60 AZ Model
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Neutron stars seem an oddity to me
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Is Space-Time Lattice or Continuum: What Are the Implications for Physics?
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How Far Have We Explored the Universe in Search of Alien Life?
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Geosynchronous station keeping
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Spaceships a'turnin round and round - in space
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What Substances Exist in the Atmosphere of Our Galaxy?
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How much is space actually bent by mass?
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Why can't we go to the center of the galaxy?
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Questioning Saturn's Rings: Debunking the Myth of a Young Universe
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Can Time Travel Really Happen Through Black Holes?
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Is There Software That Can Connect My Meade LX200 GPS Telescope to My PC?
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Is the Universe Finite or Infinite?
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Can Large Meteors Really Fall Directly on Me?
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Is the Big Bang Theory Confusing the Concept of Singularity and Black Holes?
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How to measure the Distance from Earth to Sun?
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What Unusual Planetary Compositions Could Exist Beyond Earth?
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How Can I Create a Small Observatory to Watch the Stars?
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How Can We Determine if a Star is Still Active or Already Dead?
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Is the Big Bang Theory Suppressing Alternative Cosmological Ideas?
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Could Mars Have Lost a Large Moon?
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What Comprises the 5% of Visible Matter in the Universe?
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What Are Some Mysteries Surrounding the Sun?
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Stupid question looking for stupid answer
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