Members of the Mars Science Laboratory/Curiosity team, which includes rover drivers and scientists, test out an engineering model of its next generation Mars rover, dubbed "Curiosity", in the desert near Baker, California May 10, 2012. According to a press release from NASA, the rover is 89 days away from its August appointment with Mars. [Photo/Agencies]

Members of the Mars Science Laboratory/Curiosity team, which includes rover drivers and scientists, test out an engineering model of its next generation Mars rover, dubbed "Curiosity", in the desert near Baker, California May 10, 2012. [Photo/Agencies]