Could An Asteroid Slam Earth Without Warning?

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Stargazing At The Opera

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NASA Prepares Spirit For Winter On Mars

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In 2004, Comet C/2001 Q4 (NEAT), seen here, passed within 30 million miles of the Earth's orbit. A new report suggests that such near-Earth objects may go undetected by NASA, unless additional funding is provided. Courtesy of NASA hide caption

toggle caption Courtesy of NASA

Report: Funds Needed For Asteroid Warning System

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Space Shuttle Discovery lands at Edwards Air Force Base on Sept. 11, 2009. Discovery has been promised to the Smithsonian, but NASA's other two shuttles, Endeavour and Atlantis, are still up for grabs. NASA/David Huskey/WSTF hide caption

toggle caption NASA/David Huskey/WSTF

Shuttle Keepsakes Up For Grabs

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Mystery Of The Dimming Star Coming To An End?

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Distant Galaxies, Exoplanets Star At Space Meeting

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A view of the central region of the Milky Way galaxy. Dark matter accounts for over 70% of the mass of the Milky Way, but because dark matter is invisible, all we see when we look up in the sky is a small amount of stars, planets and gas. AP/NASA hide caption

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Astronomers Map Dark Matter 'Beach Ball'

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Company Plans To Pull Solar Energy From Orbit

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Newly Discovered Planet Could Be A Watery World

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NASA Telescope To Spot Nearby Space Neighbors

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NASA Works To Free 'Spirit'

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Particle Smasher Is Fired Up (Again)

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This Year, No Turkey Feast For Shuttle Astronauts

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