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Workers in the Payload Hazardous Servicing Facility begin raising an overhead crane that will be used to lift the aeroshell enclosing Mars Exploration Rover 2 and lander. The descent and landing vehicle will be moved to a rotation table for a spin stabilization test. v Each rover will carry five scientific instruments that will allow it to search for evidence of liquid water that may have been present in the planet's past. The first rover, MER-A, is scheduled to launch June 5 from Cape Canaveral Air Force Station. The second is scheduled for launch June 25.