Giant comet to pass Mars for the first time in a million years

October 17, 2014 8:57 PM

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Giant comet to pass Mars for the first time in a million years

The closest look ever at a new comet will happen when the mountain-size Comet Siding Spring buzzes past Mars this weekend.

A comet on a once-in-a-million-years journey will graze the atmosphere of Mars, astronomically speaking, on Sunday, October 19. This historic game of cosmic chicken will be documented by more than a dozen spacecraft, including Mars orbiters in the neighborhood that must then "duck and cover" behind ...

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