Atlas 5 rocket carrying NASA's Mars Science Laboratory, Curiosity NASA has launched Atlas 5 rocket carrying the nuclear-powered rover, Curiosity, which is the world`s largest extraterrestrial explorer to Mars. The six-wheeled, one-armed robotic rover left Florida on Saturday at 15:02 GMT, the state-funded BBC reported. The one-ton rover is planned to search Martian soil and rocks for any signs...