LOS ANGELES, Oct 1: The space shuttle Endeavour touched down in Los Angeles on Friday on the back of a jumbo jet, greeted by cheering crowds as it ended a celebratory final flight en route to its retirement home at a Southern California science museum. The 75-ton winged spaceship, ferried by a modified Boeing 747, landed at Los Angeles International Airport shortly before 1300 hrs after hop-scotching across the country from Cape Canaveral, Florida, and flying a victory lap over California. (agencies)