NASA
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Possible discovery of exomoon circling alien planet reveals how little we know about the universe
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Hubble Space Telescope extends our cosmic 'tape measure,' looks farther into our galaxy
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NASA dreams of using flying saucers to send astronauts to Mars
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NASA plan for humans on Mars in the 2030s: Will Mars One already be there?
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Robot aboard International Space Station to get legs, NASA says
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NASA clears spacecraft for 2018 trip to asteroid
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Selfie bug bites Instagram-loving NASA astronaut, Earth photobombs him
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Blood moon set for Monday night: How and when to watch this celestial wonder
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Crater on Mars once held a 'here today, gone tomorrow' lake of water, scientists say
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NASA readies Low-Density Supersonic Decelerator flying saucer for future Mars, asteroid missions
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Curiosity arrives at next destination on Mars: What's that strange light? Aliens?
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NASA observatory catches stunning solar flare from sun [VIDEO]
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