Photos: Curiosity Rover, NASA's Mars Science Laboratory

Biggest Heat Shield Prepared for Mars Spacecraft

NASA/JPL-Caltech/Lockheed Martin

The heat shield for NASA's Mars Science Laboratory is the largest ever built for a planetary mission.

Curiosity Mars Rover Mockup in Death Valley

NASA/JPL-Caltech

A mockup of NASA's Curiosity Mars rover gets its wheels dirty in sand dunes near California's Death Valley in early May 2012.

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