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.
Undergrad Proxima centauri main sequence duration
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Undergrad Movement of different-sized crafts in space
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Undergrad Can Wormholes and Dark Matter Lead to Time Travel?
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Undergrad Planets' and Sun's mean angular velocity
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Undergrad How Do Scientists Estimate the Distance to Stars?
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Undergrad Something I don't get about Wormholes
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Undergrad The time of becoming a red giant
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Undergrad Question, Why is Mars almost sterile?
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Undergrad Simulations - Programming languages?
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Undergrad Initial mass function - power law
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Undergrad Why do astronomers stick with old languages like IDL and FORTRAN?
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Undergrad Composition of planets vs. moons
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Undergrad Breaching Europas Subsurface Ocean
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Undergrad Astronomy Problem: How to Find Apparent and Absolute Magnitude of a Cepheid
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Undergrad Why do Planets have elliptical orbits ,AND
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Undergrad What Are the Key Differences Between Black Holes and Wormholes?
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Undergrad Dark Energy & Expanding Universe: Newtonian Perspective
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Undergrad What are the best RSS feeds for the latest astrophysics research?
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Undergrad Calculate Orbital Period of Earth: GM & a for t in Years
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Undergrad Is Time Affected by Space in the Universe?
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Undergrad Number of intelligent civilizations over the history of the galaxy
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Undergrad The Space Tent: A Revolutionary Idea for Structuring Martian Towns
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Undergrad What Happens When We Cool and Slow Down Solar Particles?
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Undergrad Is space an insulator? Why do satellites stay warm?
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Undergrad Blocks of empty space within the known universe
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Undergrad Trajectory of object around the moon as function of time
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Undergrad How to test a parabolic mirror?
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Undergrad Is Time Travel Possible Through Black Holes?
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Undergrad A question about expansion of the universe
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Undergrad How Did Kepler Discover the Sun's Position in Planetary Orbits?
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Undergrad How can we see stars past 13.5 billion light years away?
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Undergrad What exactly are Magnetars? I've heard the term used before, and all I
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Undergrad Is There a Center of the Universe? The Mystery of Tracing Its Boundaries
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Undergrad Nobody has yet seen an extraterrestrial, but scientists have found
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Undergrad Quick question: Why is Saturns atmosphere LESS stormy than Jupiters?
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Undergrad What factors make landing on Mars easier than on the Earth? Harder?
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Undergrad Galaxies - spiral arms split, why?
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Undergrad Detecting Black Holes: Is It Possible?
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Undergrad Stars: Creation, destruction and impact on the universe
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Undergrad Solving Sun-Earth-Moon Orbit Problem with Solar System Simulator
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Undergrad Sun's Evolution: Tracing the Evidence from Red Dwarfs to the Present
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Undergrad Is Time the Movement of Matter Through Space?
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Undergrad How to Calculate Gravitational Acceleration on a Planet with Core and Shell?
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Undergrad Are There Recent Findings on Earth-Sized Exoplanets and Instrument Limitations?
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Undergrad What Would Happen If We Turned Off the Sun's Gravity?
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Undergrad Help Needed: Surviving Year-Long Placement with Mid-Semester Report
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Undergrad Universe contains many more red dwarfs than previously thought
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Undergrad Easy A Courses for Science Majors: Astronomy vs. Intro to Psychology
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Undergrad Where Can I Find Resources on Orbital Mechanics for Game Development?
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Undergrad Need help converting values regarding Jupiter's mass, and moons.
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Undergrad What Formulas are Used to Put an Object into Orbit?
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Undergrad How dense could Earth's atmosphere potentially be?
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Undergrad Cometologist Brian Marsden Obit
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Undergrad What Forces Shape Bar-Centered Galaxies?
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Undergrad Kepler's Second Law: Equal Area in Equal Time
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Undergrad Weather Ballon with Camera/GPS payload. 1x600g or 2x600g balloon for lift?
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Undergrad Detecting a small object in space.
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Undergrad Photons in Empty Space: Is Space Full?
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Undergrad How a binary system affects gravity on members?
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Undergrad Equation of an Elliptical Orbit for a Moon around a Planet
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Undergrad Uncovering the Mystery of Potential Mars-Sized KBOs
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Undergrad Could a Moon Make Gliese 581 g Habitable?
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Undergrad Efficiency of solar panels: Earth vs Space
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Undergrad I and Tim float a long string of closely spaced helium-filled
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Undergrad How do I calculate M_I from M_J values?
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Undergrad Is the Lunar Laser Ranging Experiment a Good Topic for an Astrophysics Project?
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Undergrad Speed of Moon without Sun gravity.
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Undergrad Asteroid Hits Moon / Breaks it up:
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Undergrad Newbie Asks: What Existed Before Big Bang?
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Undergrad Book Research, Astronomical Justification for Plot Device
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Undergrad How can you tell that a planet in another star system is tidally locked?
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Undergrad Conversion of units (tangential velocity)
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Undergrad Physics Topics for Astrophysics?
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Undergrad How Does the Moon's Tidal Locking Affect Earth's Rotation?
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Undergrad What Was the Resolving Power of Green Bank's 300-ft Telescope?
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Undergrad Taking picture of stars from weather balloon
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Undergrad Water in moon ejecta plume (Lcross report 22 Oct.)
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Undergrad Can I Pursue an Astrophysics Masters/PhD in the USA with a Mathematics Degree?
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Undergrad What Are the Competing Theories in Astrophysics: Dark Matter vs MOND?
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Undergrad How is measuring Redshift possible?
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Undergrad New to astrophysics, don't have a good physics foundation, need some help
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Undergrad *Quick moon question - (about orbit)
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Undergrad Formation of Stars: How Gas Spins to Fuel Birth
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Undergrad Is this angular size calculation correct?
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Undergrad Universe Origin: How Could Galaxy be 13B Light Years Away?
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Undergrad Calculating the Earth-Sun distance during perihelion
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Undergrad Greenwich Mean Timt, GMT and Universal Coodinated Time, UT
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Undergrad Question about Objects in Ultra Deep Field
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Undergrad Black holes giving birth to stars?
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Undergrad Tides & Moon Distance: Seeking Answers
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Undergrad Calculating Gravities for Math to the Moon
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Undergrad Astrometry and Elliptical orbits
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Undergrad Can We Reach the Moon with a Slow, Steady Launch?
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Undergrad How Can We Determine the Size of a Black Hole?
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Undergrad Could Heat Exchange Be the Reason Behind Earth's Spin?
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Undergrad Strange wikipedia entry about the sun's core
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Undergrad Define/explain this gravity calculation (picture)
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Undergrad Degeneracy pressure and interactions
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Undergrad Angular size of Venus: Is my math correct?
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Undergrad Coordinates of Planets: An Astronomer's Guide
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