Mars Rover Opportunity View of Passing Comet

Researchers used the Pancam on NASA Mars Exploration Rover Opportunity to capture this view of comet C/2013 A1 Siding Spring as it flew near Mars on Oct. 19, 2014.

Researchers used the Pancam on NASA Mars Exploration Rover Opportunity to capture this view of comet C/2013 A1 Siding Spring as it flew near Mars on Oct. 19, 2014.

MarsMars Exploration Rover MER