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.
Graduate How would the solar system capture an extra solar planet ?
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High School Taking Pictures From Outer Space: Color or B&W?
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Graduate 'Spinning' the truth about our own Moon?
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Which Planets Are Visible Today?
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High School Why the Moon Doesn't Fall on the Earth
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High School Full Moon Height: When is It Highest?
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Graduate Another Neptune in the Oort Cloud
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High School Liftoff for Ceres and Vesta (July 2007)
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Graduate Can MOND be ruled out at laboratory scale?
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Graduate Collapsing Stars: White Dwarfs, Neutron Stars & Singularity
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Graduate MOND-related Formula in GR Calcs at Cosmological Scale
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Undergrad What is the impact of the moon's mass on Earth's orbit around the sun?
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Undergrad Julian Days: Guide to Formula & Calculations
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Graduate Is the Existence of Black Holes Debated Among Astrophysicists?
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High School Mirror Grinding Kits: Wave Aspect Explained
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Graduate Nice thumbnail sketch of Earth's future by John Baez
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Graduate Theoretically Possible: Opening a Wormhole to Another Location
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Undergrad Unveiling the Mystery of Light: How Does it Move?
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High School Video Recommendations for Black Holes & other space-related phenomena
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Graduate Giant Solar Laser: Harnessing Energy from the Sun
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Undergrad Star Collapse: Why Not in Early Stages?
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Undergrad Calculate Star Radii: Mass, Luminosity & Temp
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High School Uncovering the Mystery of Dark Matter: A Beginner's Guide
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High School Does the Name of Mars Reflect its Ancient Oceans?
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Xena officially named Eris (as of 13 Sept)
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High School Which exoplanet was the first comfirmed discovery?
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Undergrad Can Distance Alone Prove Gravitational Binding?
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Graduate Earth-Sun Distance Over Time: Stability & Changes Explained
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Undergrad Publications on the evolution of stars?
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Stargazing About Parabolic Telescope Mirrors
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Undergrad What are Some Important Effects or Phenomena in Astrophysics?
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Undergrad Most Distant Black Hole Discovered: 13 Billion Light-Years Away!
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Graduate Moon Perturbations: Learn Differential Gravitational Forces
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Graduate Is Matter and Energy the Same Thing? Debunking Claims About Physics
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Graduate Permeability of free space question
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Graduate Why objects at lagrangian points 4 and 5 are stable?
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Anyway, Mysterious Hole on Mars Found
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Graduate How Do Black Holes Escape Their Own Event Horizon?
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Graduate HII Region Temperature Structure
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Graduate Black hole gravity response question
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High School Seeing the Galilean Moons with Celestron 7x50 Binoculars
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Undergrad A Query on Sun and Moon Coordinate data
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Graduate Are we rewriting the birth of the solar system?
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Undergrad What would a black hole look like?
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Graduate What kind of energy is released when matter and antimatter collide?
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High School What colors represent different stages of a star's life cycle?
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Graduate Is Gliese 581d a Habitable Super-Earth?
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Undergrad Measuring the Distances to Stars and Galaxies
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Graduate If two black holes combind together-
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Graduate Is Dark Matter More Significant Than Black Holes in the Universe's Mass?
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Stargazing Is the James Webb Space Telescope Ready to Replace Hubble?
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High School What Can I See with My Telescope in Boston?
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Who said: however the Earth still rotates
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Graduate Does gravity affect the measurement of pi in non-euclidean geometries?
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Undergrad SKA: What's Being Planned & Job Prospects?
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Undergrad Understanding the Doppler Effect: The Red Shift and Our Place in the Universe
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What Makes Black Holes So Mysterious and Dangerous?
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High School Could Dead Stars Lead to Abandoned Solar Systems?
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Undergrad Supernova 7000 ly Away: Impact on Earth and Light Visibility
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Graduate Does 1a supernova release the same amount of neutrino as type2 supernova?
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Graduate Solar Cycle & Explanation for Recent Changes?
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High School Gravitational Lensing: Learn More about Einstein Rings
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Undergrad Learning Physics: How Do Neutron Stars Form?
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Undergrad Is NASA's New Evidence the Most Direct Detection of Dark Matter?
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Graduate How Do Accretion Discs and Black Holes Emit High-Velocity Charged Particles?
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Amazing Saturn Photo: Cassini's Awe-Inspiring Image
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Undergrad Apparent Magnitude: Meaning & 3 Star System
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Undergrad Gravity and the Rotation of Galaxies
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Undergrad Density of Gliese 581 d: What's the Real Number?
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Graduate Calculating Mass/Density for a 4x Larger Earth
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High School Maximum number of orbiting planets
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Undergrad Why Do Comets Have Elliptical Orbits While Planets Are Circular?
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Graduate Is Too Much Physics Bad For Astronomy?
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Graduate Details on the galaxy crash in our future
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Undergrad Is Pluto's Axis of Rotation Almost Perpendicular to Its Orbit?
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High School Signal Transmission from Mars to Earth
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Stargazing Refracting vs Reflecting Telescopes: Which is Easier to Build?
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Graduate Which Statements about Cold and Hot Dark Matter are Incorrect?
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Undergrad Brightest supernova ever observed
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High School Universe Expansion: How Fast Is It?
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Graduate How can tidal friction on Earth affect the Moon?
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Graduate What Are the Possible Changes in the Fine Structure Constant in the Past?
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High School What is the term for light from the dark part of the moon facing earth
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Graduate Can I Ignite a Star with 1.1 kg of Mass?
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Graduate How to Calculate the Readout Noise of a CCD?
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Most earthlike exoplanet yet (ESO team 23 April)
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Undergrad Atmospheric Refraction vs Height
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Graduate Gravitational Redshift Contribution to Quasar Redshift: Explaining Hubbles Law
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What Makes the Crab Nebula One of the Most Dynamic Objects in the Universe?
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Graduate Polarization of Light: Astrophysical Processes & Mechanisms
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Wikisky.org - beautiful views of the universe
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High School Size of the Universe Speech Help
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Is Dark Matter the Key to Solving Galactic Mysteries?
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Graduate E=MC2 vs The End: Can Energy Ever Truly Be Destroyed?
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Graduate If two white-dwarf stars combined together,there will be supernova?which type?-
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High School How Can a Beginner Start Learning Astrophysics and What Math is Required?
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Number of Observed Galaxies | Glynis' Question
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Undergrad Space Travel Possible? Avoiding Collisions & Risks
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Graduate Uncovering the Mysteries of the Sun and its Relationship with Earth
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Graduate Atmospheric Absorption of Starlight
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