CAPE CANAVERAL, Fla. - At NASA's Kennedy Space Center in Florida, Lynda Weatherman, President of the Economic Development Commission of Florida Space Coast, addresses guests at a presentation during which XCOR Aerospace announced plans to open a manufacturing operation in Brevard. Space Florida President Frank DiBello is seated to the right. The company's suborbital Lynx Mark II spacecraft possibly will take off and land at Kennedy's shuttle landing facility. XCOR Aerospace is a small, privately held California corporation with focus on the research, development, project management and production of reusable launch vehicles, rocket engines and rocket propulsion systems. XCOR will focus on space tourism, experimental flights and launching satellites. Photo credit: NASA/ Frankie Martin KSC-2012-4574

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.