Historic Flyby: Comet to Zoom By Mars This Weekend

Monday, October 13, 2014 - 07:00 in Astronomy & Space

Comet Siding Spring, also known as C/2013 A1, will miss the Red Planet by just 87,000 miles (140,000 kilometers) at 2:27 p.m. EDT (1827 GMT) Sunday. For comparison, the moon orbits Earth at an average distance of 239,000 miles (384,600 km).

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