Nasa's space shuttle, Discovery, has landed after a 13-day mission to the International Space Station to work on its solar power unit.
The shuttle touched down at Kennedy Space Center in Florida, hours after its return was postponed because of concerns over poor weather conditions.
Discovery delivered an extra pair of solar wings to the International Space Station and its crew spent eight days on their installation.
Meanwhile, a Russian space capsule with an American passenger on board has docked with the space station.
Charles Simonyi, a software designer, is making his second trip as a space tourist. He was accompanied by Russian and American astronauts.