The payload canister containing the U.S. Node 2 module called Harmony arrives underneath the payload changeout room.

The payload canister containing the Italian-built U.S. Node 2 module, called Harmony, arrives underneath the payload changeout room on Launch Pad 39A. The canister will be lifted to the payload changeout room and the module transferred inside. The payload will be installed in space shuttle Discovery's payload bay after the vehicle rolls out to the pad. Discovery is targeted for launch to the International Space Station for mission STS-120 on Oct. 23. The pressurized module will act as an internal connecting port and passageway to additional international science labs and cargo spacecraft. Photo credit: NASA/George Shelton