The Integrated Truss Structure S0 is ready to be moved to the payload canister for transport to the launch pad for mission STS-110.

In the Operations and Checkout Building, the Integrated Truss Structure S0 is ready to be moved to the payload canister for transport to the launch pad for mission STS-110. Part of the payload, the S0 truss will become the backbone of the orbiting International Space Station (ISS), at the center of the 10-truss, girderlike structure that will ultimately extend the length of a football field on the ISS. The S0 truss will be attached to the U.S. Lab, "Destiny," on the 11-day mission. Launch is scheduled for April 4.