Space
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Study of Massive Stars Confirms Milky Way has Four Spiral Arms
New research published in the Monthly Notices of the Royal Astronomical Society claims to end the long-standing debate over whether the Milky Way galaxy has two or four "arms."
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Distortion in Universe's Oldest Light Offers Peek into the Past
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SpaceX on Tract to Lease Historic NASA Launchpad
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Resurrected Spacecraft Captures Portrait of Unlikely Group
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Geminid Meteor Shower Set to Peak Friday Night, Saturday Morning
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ISS Crew and NASA Officials Work to Solve Glitch Aboard Station [VIDEO]
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Ozone Hole Hasn't Begun to Heal Yet, Studies Show
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Water Vapor Found Venting off Europa
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NASA's Juno Captures Earth-Moon Dancing [Video]
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Mauna Loa’s Lava Study Confirms Geologists’ Early Warning of Eruption
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Global Plastic Pileup Could Be Halted With Four Policies, California Study Finds
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World’s Largest Organism May Have Persisted Since the First Human Migrations
