An overhead crane maneuvers the service module of the Cygnus spacecraft, built by Orbital ATK, toward a work stand inside the Space Station Processing Facility at NASA's Kennedy Space Center in Florida. The service module includes the spacecraft’s propulsion system as well as its power-producing solar arrays. The Cygnus, which flies without a crew, is to launch atop a United Launch Alliance Atlas V rocket carrying equipment, supplies and research to the International Space Station.