Mars rover 'Curiosity' tested in desert Members of the Mars Science Laboratory/Curiosity team, which includes rover drivers and sc...

Mars rover 'Curiosity' tested in desert

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]

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]

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]

Members of the Mars Science Laboratory/Curiosity team, which include rover drivers and scientists, run a test between an engineering model of the current rover on Mars (front) and its successor, dubbed "Curiosity" (back), in the desert near Baker, California May 10, 2012. [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. According to a press release from NASA, the rover is 89 days away from its August appointment with Mars.