Workers at right maneuver to their feet as the Joint Airlock Module is lowered into the payload canister.

Workers at right maneuver to their feet as the Joint Airlock Module is lowered into the payload canister. After being placed in the canister, the module will be transferred to the Space Station Processing Facility. There the module will undergo more preflight processing for the STS-104 mission scheduled for launch aboard Space Shuttle Atlantis May 17, 2001. The Joint Airlock Module is the gateway from which crew members aboard the International Space Station will enter and exit the 470-ton orbiting research facility