The private Californian company SpaceX has successfully launched a Falcon 9 rocket.
The lift-off will come as a relief to engineers, their first flight since a similar rocket exploded on the launchpad in September.
The successful flight on Saturday took 10 satellites into orbit for a communications company.
SpaceX has an ambitious programme ahead, taking astronauts into space and cargo to the international space station, as well as reusing rockets to cut costs.
