China Launches A Space Laboratory

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Physicist Lisa Randall On Cosmology And The LHC

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This picture of the Eros asteroid is the first of an asteroid taken from an orbiting spacecraft. The crater at the center is about 4 miles across. JPL/JHUAPL/NASA hide caption

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Asteroids Pose Less Risk To Earth Than Thought

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Ark. Archivist Finds Missing Moon Rock

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NASA's GRAIL mission to study the moon launches aboard a Delta II rocket at Kennedy Space Center on Sept. 10. Sandra Joseph and Don Kight/NASA hide caption

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Launch Logistics: Speedy Rocket, Slow Electronics

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NASA: Satellite's Rate Of Descent Has Slowed

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Still Cataloging The Skies, Long After 'Planet X'

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Flagstaff Throws A Science Party

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This artist's conceptual image shows the Upper Atmosphere Research Satellite, or UARS. After two decades in orbit, the satellite will make an uncontrolled re-entry into the Earth's atmosphere. NASA hide caption

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Where Falling Satellite Lands Is Anyone's Guess

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NASA Satellite Expected To Collide With Earth

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NASA's Kepler mission has discovered a planet that circles two stars instead of one. The planet, shown as the black dot in this artist's illustration, is similar to Saturn, though it is more dense and travels in a 229-day circular orbit around its two stars. R. Hurt/NASA/JPL-Caltech hide caption

toggle caption R. Hurt/NASA/JPL-Caltech

Here Come The Suns: New Planet Orbits Two Stars

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