Mars rover Curiosity gears up for its toughest feat since landing on the rocky surface of the Red Planet.<br/> <br />On Wednesday, NASA's one-ton, nuclear-powered mobile laboratory will take a 30 minute test drive inside the Gale Crater where it touched down.<br/> <br />The test will be fairly simple: a quick three meter jaunt from its landing site and back.<br/> <br />However, the drive will give scientists a feel for how the rover moves and responds ahead of its journey to a peak at the center of the crater.<br/> <br />That peak is the primary target of the $2.5 billion dollar mission to see if Mars was host to some of the earliest life forms.<br/> <br />On Monday the robot flexed its robotic arms and pivoted one of its six wheels in preparation for the test drive.
