Watch Live Thursday: Mountaintop Blast to Make Room for Huge Telescope


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Watch Live Thursday: Mountaintop Blast to Make Room for Huge Telescope

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Universe’s Expansion Measured With Unprecedented Precision


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Universe’s Expansion Measured With Unprecedented Precision

NASA Dark-Energy Mission Could Spot 3,000 New Alien Planets


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NASA Dark-Energy Mission Could Spot 3,000 New Alien Planets

Amazing Night Sky Photos for June 2014 (Stargazing Gallery)


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Photos:

Amazing Night Sky Photos for June 2014 (Stargazing Gallery)

NASA Probe Flying by Huge Saturn Moon Titan Today


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NASA Probe Flying by Huge Saturn Moon Titan Today

Astronauts May Suffer Artery Damage on Long Missions


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Astronauts May Suffer Artery Damage on Long Missions