NASA Discovery astronauts finished up their third and final spacewalk on Sunday at the International Space Station.
The third and final spacewalk had them replacing an empty gas tank and collecting a sample of debris from space.
The spacewalk was carried out by Michael Fossum and Ronald Garan Jr.
The mission was completed so efficiently that Mission Control actually added some extra things for them to do with their time.
The spacewalk lasted a total of 6 and a half hours.
The biggest part of the walk was when Garan rode on a robot arm carrying an empty nitrogen gas tank from one side of the ISS to the other, and then returned with a full tank.