Space shuttle Endeavour has landed back on Earth for the very last time.
The spacecraft touched down at the Kennedy Space Centre in the American state of Florida, ending its 19-year career.
In that time, Endeavour flew 25 missions and travelled more than 122 million miles! It will now be put on display in a museum.
There's now just one more shuttle left, called Atlantis. It's set to launch on its last mission in July 2011.
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Endeavor first took off back in 1992, and since then has spent nearly three hundred days in space.
NASA, the American organisation that run the space missions, is retiring all it's shuttles because they are too expensive.
Endeavor was the newest of all the shuttles - and has completed some really important missions.
It was the first flight to deliver parts of the International Space Station when it was being built, and carried out repairs on the famous Hubble Space Telescope.
As it landed, mission control radioed in a special message to the shuttle.
"Your landing ends a vibrant legacy for this amazing vehicle that will long be remembered. Welcome home, Endeavour," they said.