The space shuttle Endeavour has touched down in the US sate of Florida after its record-breaking mission to the International Space Station (ISS).
The 16-day mission was the longest of its kind and saw the astronauts put together a robot and start work on a new research lab.
"In a bittersweet way, we're ready to get home," said pilot Greg Johnson.
The next shuttle mission to the International Space Station is set to lift off in late May.
Another shuttle - Discovery - will take more parts for the new lab into space.
Endeavour brought home French astronaut Leopold Eyharts, who had spent seven weeks on the ISS.
Ten more missions are planned to take place before 2010, when the shuttles will be taken out of service, with new vehicles set to replace them.