Space
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Largest sunspot in past 20 years turns towards Earth
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How do ISS astronauts maintain their health?
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Rotten eggs in space? That’s what comets smell like
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How black holes can stop stars from forming
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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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