What It's Really Like To 'Walk' In Space

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Short Answers To Big Questions: The Power Of Earth's Magnetic Field

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The Japanese Subaru Telescope on Mauna Kea in Hawaii has the right attributes for searching for Planet Nine. National Astronomical Observatory of Japan hide caption

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Astronomers Are On A Celestial Treasure Hunt. The Prize? Planet Nine

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Astronomers Predict Incredible Show As Perseid Meteor Shower Peaks

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Short Answers To Big Questions: Exploring Atoms In Space

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An illustration of the company's landing vehicle on the surface of the moon. Moon Express via AP hide caption

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Florida Company Gets One Bureaucratic Step Closer To Landing On The Moon

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The Mystery Of The Fireball That Lit Up The Western Sky

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Though Jupiter's red spot looks small in this photo, it's actually about 10,000 miles wide — bigger than Earth's diameter. Space Telescope Science Institute/NASA hide caption

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How Jupiter's Red Spot Makes Things High Above It Hot, Hot, Hot

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Congress is requiring NASA to travel to Jupiter's moon Europa by 2022. Currently, it is the space agency's only new mission planned for the outer solar system. NASA/JPL-Caltech/SETI Institute hide caption

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What Comes Next For NASA After Juno? Not Much

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NASA's Juno Space Probe Tweets Followers On Earth

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Juno Mission Faces Make-Or-Break Orbit Moment

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When it named this mission, NASA acknowledged its difficulty. Juno was a Roman goddess, the agency notes, "who was Jupiter's wife, and who could also see through clouds." NASA/JPL-Caltech hide caption

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