For a While, Stephen Hawking Leaves Gravity Behind

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Earth-Like Planet Discovered in Libra

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NASA Facility Is Site of Two Killings After Standoff

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Test of Einstein's Theory of Gravity Hits a Snag

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Space Tethers: Slinging Objects in Orbit?

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Space Travel: Only for Billionaires?

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The Local Debate over Spaceport America

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Zero Gravity Zzzs: Joys of Sleeping in Outer Space

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SpaceX Makes Progress with Rocket Test

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Pluto: Still a Planet in New Mexico

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NASA Report on Asteroids Suggests Nuclear Option

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Scientists Gather at Conference to Stop Asteroids

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