Space Exploration Technologies successfully launched its Falcon 9 rocket carrying the Dragon capsule from Cape Canaveral, Fla., on Sunday. SpaceX is the first company to send supplies to the International Space Station. Unlike earlier cargo ships, the Dragon capsule can return to Earth carrying experiment samples and station hardware no longer needed at the space outpost. The success of the mission will also renew a U.S. supply line to the space station, which had been halted last year by the ending of the space shuttle program.