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CAPE CANAVERAL, Fla. – John Grotzinger, project scientist for Mars Science Laboratory (MSL) at the California Institute of Technology in Pasadena, Calif., demonstrates the operation of MSL's rover, Curiosity, during a science briefing at NASA's Kennedy Space Center in Florida, part of preflight activities for the MSL mission. Michael Malin, principal investigator for the Mast Camera and Mars Descent Imager investigations on Curiosity from Malin Space Science Systems, looks on at right. MSL’s components include a car-sized rover, Curiosity, which has 10 science instruments designed to search for signs of life, including methane, and help determine if the gas is from a biological or geological source. Launch of MSL aboard a United Launch Alliance Atlas V rocket is scheduled for Nov. 26 from Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida. For more information, visit http://www.nasa.gov/msl. Photo credit: NASA/Kim Shiflett