Scientists comment on a parachute deployment of the Curiosity Mars Rover during a media briefing of the Mars Science Laboratory, MSL science overview news briefing at NASA's Jet Propulsion Laboratory, JPL, in Pasadena, Calif., Thursday, Aug. 2, 2012. From left: Doug McCuistion, Mars Exploration Program director, NASA Headquarters, Peter Theisinger, MSL project manger, NASA JPL, Pasadena, Adam Steltzner, MSL entry, descent and landing phase lead, JPL, Thomas Martin-Mur, MSL navigator team chief, JPL, Ashwin Vasavada, MSL deputy project scientist, JPL, Doug Ellison, visualization producer, JPL. (AP Photo/Damian Dovarganes) Photo: Damian Dovarganes, Associated Press / AP
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