WASHINGTON: SpaceX's unmanned Dragon cargo ship blasted off toward the International Space Station on Sunday, carrying a load of supplies and science experiments for the astronauts living there.  The spacecraft launched aboard a Falcon 9 rocket from Cape Canaveral, Florida at 1:52 am (0552 GMT). "And Dragon is flying free, on its way to the International Space Station," NASA commentator George Diller said. It is scheduled to arrive at the ISS early Tuesday. The space station's robotic arm is to reach out and grapple the spacecraft at 7:04 am (1104 GMT), Diller said.–AFP