Exploring the Solar System

Exploring Mars

How long did Mars Pathfinder and the Sojourner rover last?

The Pathfinder probe and Sojourner rover each operated for about three months. This far exceeded the mission’s original specifications; Pathfinder was expected to work for thirty days, and Sojourner for just seven days. The mission netted more than 17,000 images—550 of them from the Sojourner’s mobile camera—and 2,300 megabytes of data.


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