Last updated on April 19, 2014 at 13:20 EDT
Mars Science Laboratory Rollout
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Mars Science Laboratory Rollout

October 2, 2012
NASA Administrator Charles Bolden, center stands with ULA program operations manager, John Crocker, right, and Mark Dowhan, ULA east coast director of launch operations, as they watch the United Launch Alliance Atlas V rocket carrying NASA's Mars Science Laboratory (MSL) Curiosity roll to Space Launch Complex-41, early Friday, Nov. 25, 2011, at Cape Canaveral Air Force Station, Fla. The launch team continues working towards liftoff of the Atlas V on Saturday, Nov. 26. Photo Credit: (NASA/Paul E. Alers)