Trip Across Canada's Arctic Mimics Mars Visit
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Space Station Has Close Call With Space Junk
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Redux: Sleeping In Space
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Aging Satellites Threaten Climate Research Future
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New Telescope To Hunt For Earth-Like Planets
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Celebrating The International Year Of Astronomy
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Space Invaders? Microbes' Travel Raises Concern
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Failed Launch Puts NASA Satellite In Ocean
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NASA Loses Carbon-Measuring Satellite
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Watching The Skies For Comet Lulin
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NASA Satellite To Track Carbon Dioxide Globally
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Hazardous Junk Piling Up In Space
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Astrophysicist Tyson On 'Pluto Files'
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