'Dragon back' as cargo reaches space station

SpaceX's unmanned Dragon cargo ship docked on Sunday with the International Space Station, bringing supplies and experiments for the astronauts in orbit."Dragon installed," a NASA commentator said at 1326 GMT after the delicate, hours-long process of sealing 16 bolts joining the two craft was complete.Earlier, as the Dragon arrived, the space station's robotic arm, operated by one of its astronauts, attached itself to the cargo ship as they were over Australia and Papua New Guinea.