KENNEDY SPACE CENTER, FLA. - During a visit to KSC, former astronaut Jim Lovell (far left) talks to (from right) Space Shuttle Test Director Steve Altemus, Launch Director Mike Leinbach, and reconstruction engineer John Cowart. Lovell, along with former astronaut Wally Schirra, visited KSC to talk about the space program and their experiences, as well as offer encouragement to workers to help get the space program "back on its feet." They visited several sites around the Center, including the RLV Hangar where Columbia debris is being collected and examined as part of the investigation into the tragedy that claimed the orbiter and lives of seven astronauts returning from mission STS-107. KSC-03pd0559

The Space Shuttle program was the United States government's manned launch vehicle program from 1981 to 2011, administered by NASA and officially beginning in 1972. The Space Shuttle system—composed of an orbiter launched with two reusable solid rocket boosters and a disposable external fuel tank— carried up to eight astronauts and up to 50,000 lb (23,000 kg) of payload into low Earth orbit (LEO). When its mission was complete, the orbiter would re-enter the Earth's atmosphere and lands as a glider. Although the concept had been explored since the late 1960s, the program formally commenced in 1972 and was the focus of NASA's manned operations after the final Apollo and Skylab flights in the mid-1970s. It started with the launch of the first shuttle Columbia on April 12, 1981, on STS-1. and finished with its last mission, STS-135 flown by Atlantis, in July 2011.