Mars
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Hubble captures amazing image of comet Siding Spring Mars flyby
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Hubble captures Comet Siding Spring as it has a close encounter with Mars
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Cosmic radiation makes Mars dangerous for humans
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NASA Mars orbiter Odyssey survives comet Siding Spring flyby, sends back photos as proof
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Here's why the first Mission to Mars should have an all-female crew
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NASA Mars Odyssey orbiter watches Siding Spring comet zip past at a hair's breadth
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NASA preps for Comet Siding Spring's Mars flyby: Why scientists are going gaga over it
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Siding Spring comet Mars flyby 2014: How and when to watch this once-in-a-million-years event
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Siding Spring comet set for Mars flyby at a hair's breadth distance on Sunday: Once-in-a-million years event
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NASA's Maven collects its first data about Mars' atmosphere
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Maven gives scientists first look at Mars upper atmosphere: Here's what NASA found
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Is a trip to Mars a good idea? Some say no
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