Test operators monitor how NASA Mars rover Curiosity handles driving over a ramp during a test on Sept. 10, 2010, inside the Spacecraft Assembly Facility at NASA Jet Propulsion Laboratory, Pasadena, Calif.
Test operators monitor how NASA Mars rover Curiosity handles driving over a ramp during a test on Sept. 10, 2010, inside the Spacecraft Assembly Facility at NASA Jet Propulsion Laboratory, Pasadena, Calif.