comet
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Hubble Captures Close-Up Images Of Comet 252P/LINEAR As It Approaches Earth
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Astronomers Turns To Crowdfunding To Solve Mystery Of Alien Broadcasts
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Artificial Comet Holds Key To Creating Building Blocks Of Life
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Impact Of Comets, Asteroids On Young Mars May Have Made Red Planet Conducive To Life
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Big Mystery Object Slams Into Jupiter: What Could It Be?
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NASA Observes Historic Comet Flyby With Radar And Infrared
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Comet Linear Comes Into View: When And How To See The Green Comet
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Water Ice On Surface Sheds Light On Comet 67P Evolution
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NASA Unveils New Asteroid Detection Program: What Happens When An Asteroid Hits Earth?
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Newly Discovered Giant Comets Threaten Life On Earth: Astronomers
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Researchers Find Molecular Oxygen On Halley's Comet, Believe O2 Could Be Common On Other Comets
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'Alien Megastructure' Orbiting Around Star KIC 8462852 Is Likely Swarm Of Comets: Astronomers
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