Comet Buzzes Mars in Once-in-a-Lifetime Flyby
Sunday, October 19, 2014 - 15:00
in Astronomy & Space
Comet Siding Spring came within just 87,000 miles of the Martian surface at 2:27 p.m. EDT today — about one-third of the distance between Earth and the moon. The comet barreled by at 126,000 mph relative to the Red Planet, NASA officials said.
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