comet

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Science Beat Kim Kardashian

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A Small Chance a Comet Will Impact on Mars in the Next Year

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The Coming of Ison

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Chasing Comets

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Comet McNaught Soars Over New Zealand

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Close Up Photo of an Actual Comet

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Comet ISON Is Huge

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Know Your Space Rocks

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Ikeya Seki in 1965

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Lovejoy the Comet

the tiny little dumbell nebula hangs right above it.

Lovejoy's Tail

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Rosetta Spacecraft Getting Closer to Target Comet

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Rosetta's Orbit Around the Comet

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Dirty Filthy Snowballs

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Comet Across the Sky

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Philae On the Comet