Even though there were no wheelies or skid marks, it was an exciting day for the teams working on the next Mars rover. The Mars Curiosity rover (or the Mars Science Laboratory) took its first short drive in the JPL clean room where it is being built. This video was captured from live broadcast on July 23, 2010. Cheers and commentary provided by mission team members who watched the event from a viewing gallery above the clean room floor. In this clip the rover drives backward for the first time.