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Philae status remains unclear

Probe Philae made a historical landing on a comet on Wednesday, but its conditions remained unclear. Scientists said the probe might had bounced while touching down.

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Mars comet flyby has likely created "impressive meteor shower"

Comet Siding Spring may have created "an impressive meteor shower" that altered the upper atmosphere's chemistry of Mars for hours as it whizzed past the Red Planet last month, U.S. space agency NASA said Friday.