Tranquility Installed

STS-130 astronauts have successfully added the Tranquility module to ISS during the first of three scheduled spacewalks in the mission.

Also added was the Cupola, an observation deck featuring a round window 31 inches across. Later, the Cupola will be moved to give astronauts what should be stunning views of Earth. With its emphasis on recreation and aesthetics, the Cupola may be seen as a link between ISS and future space hotels.