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Photo: lixu / Getty Images 3 Reasons Scientists Think Aliens Stay Away from Earth
About a third of the public believes they’re already here.
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Peeradon Warithkorasuth / Getty Images Moss Just Survived a Full Year Outside the International Space Station
Radiation? Vacuum? Moss says thanks for the spa day.
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MARK GARLICK/SCIENCE PHOTO LIBRARY / Getty Images Mars Caves May Hold Clues of Ancient Water and Life
These weird Martian caves keep hinting at the “L-word”: life.
