This artist's concept illustration depicts the Comet Siding Spring (2013 A1) and Mars. Photo: NASA This artist's concept illustration depicts the Comet Siding Spring (2013 A1) and Mars. Photo: NASA
This artist's concept illustration depicts the Comet Siding Spring (2013 A1) and Mars. Photo: NASA

Comet Siding Spring whizzes by Mars after a million year journey

If you missed Siding Spring's first pass, wait a million years and it should be back again

This artist's concept illustration depicts the Comet Siding Spring (2013 A1) and Mars. Photo: NASA This artist's concept illustration depicts the Comet Siding Spring (2013 A1) and Mars. Photo: NASA
This artist's concept illustration depicts the Comet Siding Spring (2013 A1) and Mars. Photo: NASA
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