Space
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U.S. Air Force sending satellites into space for 'neighborhood watch'
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Obama, Apollo 11 surviving crew members share private moment on 45th anniversary of moon landing
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Kepler spots exoplanet with longest year yet - 704 days
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Alien life needs ocean to survive: Study
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Airplanes followed a pattern of biological evolution, physics study says
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Transiting exoplanet has 704 days in its year, longest known orbit
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Does Jupiter icy moon Europa contain alien life? NASA wants to hear you
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Apollo 11 mission patch to fly with first astronauts to Mars
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Oceans needed for alien life? Study says look for water on other worlds
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Dancing dwarf galaxies around giant galaxies baffle boffins
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Government considered using Carl Sagan to help them blow up the moon - report
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Without oceans there is little chance of finding life, study shows
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