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In the Payload Hazardous Servicing Facility, an overhead crane lifts the Mars Exploration Rover 2 (MER-2) to move it to a spin table. NASAs twin Mars Exploration Rovers are designed to study the history of water on Mars. These robotic geologists are equipped with a robotic arm, a drilling tool, three spectrometers, and four pairs of cameras that allow them to have a human-like, 3D view of the terrain. Each rover could travel as far as 100 meters in one day to act as Mars scientists' eyes and hands, exploring an environment where humans cant yet go. The MER-2 is scheduled to launch June 5 from Launch Pad 17-A, Cape Canaveral Air Force Station.