The payload canister containing the S6 truss and solar arrays leaves the Canister Rotation Facility at NASA's Kennedy Space Center.

The payload canister containing the S6 truss and solar arrays leaves the Canister Rotation Facility at NASA's Kennedy Space Center in Florida to head for Launch Pad 39A. The truss and arrays are space shuttle Discovery's payload for the STS-119 mission to the International Space Station. Launch of Discovery on the STS-119 mission is scheduled for Feb. 12. During Discovery's 14-day mission, the crew will install the S6 truss segment and its solar arrays to the starboard side of the station, completing the station's backbone, or truss Photo credit: NASA/Jim Grossmann