Two astronauts have been busy working hundreds of miles above the earth fitting a brand new room to the International Space Station (ISS).
The new room was taken to the ISS on board the space shuttle and gives people on the station lots more space.
The new room is called Harmony and it is the first increase of living or working space since 2001.
It took Scott Parazynski and Doug Wheelock six hours to move the new unit into position from the shuttle.
The new room will provide a passageway to a new laboratory that's due to be fitted to the ISS in December.
When the mission is complete it means astronauts will have more space to live and work at the station.
The crew will carry out five space walks as they've got some other odd jobs to do while they're out there as well.
And some of the astronauts will be staying in space for longer than two weeks so others who are already out there can come back to Earth.