The Space Station�s $164 million air lock has just been installed, completing the first assembly stage of construction. It was fitted by the crew of the space shuttle Atlantis along with the Expedition Two crew of the Space Station.
Although the mission was declared successful, there were leaks in the air lock which caused delays.
The Space Station is now half finished but NASA is happy that it�s functioning properly.
The next visit to the Space Station is by the space shuttle Discovery in August.
For more information visit
http://spaceflight.nasa.gov/station/