Space
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UFO spotted in NASA video of ISS repair: Real or fake? [Video]
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Cosmic radiation makes Mars dangerous for humans
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Two families, hundreds of comets: ‘Exocomets’ found circling distant star
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It's a Mars rehearsal: Team studies isolation effects under dome in Hawaii
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ESA wants you to name Rosetta Philae landing site on comet 67P/Churyumov-Gerasimenko
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New Horizons sets sight on new destination after Pluto flyby
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NASA Mars orbiter Odyssey survives comet Siding Spring flyby, sends back photos as proof
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Scientists measure radiation left behind from Big Bang using POLARBEAR
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Want a hoverboard? You need $10K and a bit of faith in magnetic tech
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Orionids meteor shower expected on Tuesday morning (courtesy Halley's Comet): Here's how and when you can watch it
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NASA Mars Odyssey orbiter watches Siding Spring comet zip past at a hair's breadth
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Partial solar eclipse this week: Keep your eyes peeled if you live in North America
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