Posted: Sun, Jul 22, 2001, 11:05 AM ET (1505 GMT)

The space shuttle Atlantis undocked from the International Space Station late Saturday after crews completed the installation of a new airlock module at the orbiting facility. Atlantis undocked from the station at 12:54 am EDT (0454 GMT) Sunday, a little more than eight days after arriving at the station. The undocking came a day after two shuttle astronauts, Mike Gernhardt and Jim Reilly, performed the third and final spacewalk of the STS-104 mission, an EVA that completed the installation of the Quest airlock module and its nitrogen and oxygen air tanks to ISS. The shuttle is scheduled to land at the Kennedy Space Center in Florida at 12:37 am EDT (0437 GMT) Tuesday, weather permitting.