Endeavour Undocks from ISS The STS-113 and Expedition Five crews began their journey home today when Space Shuttle Endeavour undocked from the International Space Station. Undocking occurred at 2:05 p.m. CST (2005 GMT) as the two spacecraft flew over northwestern Australia. The STS-113 crew delivered the P1 (P-One) Truss to the station and performed three spacewalks to activate and outfit the new component. Also, more than 1,134 kilograms (2,500 pounds) of cargo were transferred between the shuttle and station. Endeavour delivered the Expedition Six crew to the station and is returning Expedition Five Commander Valery Korzun, Flight Engineer Sergei Treschev and NASA ISS Science Officer Peggy Whitson to Earth. Later today, the STS-113 crew will release two miniature satellites as part of the MEMS-based PICOSAT Inspector, or MEPSI, experiment. The satellites, which are tethered, will fly for three days to demonstrate the launcher assembly and the use of micro technologies in space. Endeavour is scheduled to touch down at Kennedy Space Center, Fla., at 2:48 p.m. CST (2048 GMT) Wednesday. Early forecasts call for a threat of thunderstorms and rain in the vicinity of the landing facility Wednesday. The STS-113 Landing Ground Tracks for Wednesday are available.