Each vehicle was designed with a projected lifespan of 100 launches, or 10 years' operational life. The orbiter also recovered satellites and other payloads (e.g., from the ISS) from orbit and returned them to Earth, though its use in this capacity was rare. Its missions involved carrying large payloads to various orbits including the International Space Station (ISS), providing crew rotation for the space station, and performing service missions on the Hubble Space Telescope. The Shuttle is the only winged crewed spacecraft to have achieved orbit and landing, and the first reusable crewed space vehicle that has made multiple flights into orbit. When its mission was complete, the orbiter would reenter the Earth's atmosphere and land like a glider at either the Kennedy Space Center or Edwards Air Force Base. The Space Shuttle-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). Its official name, Space Transportation System ( STS), was taken from a 1969 plan for a system of reusable spacecraft of which it was the only item funded for development. National Aeronautics and Space Administration (NASA), which accomplished routine transportation for Earth-to-orbit crew and cargo from 1981 to 2011. The Space Shuttle program was the fourth human spaceflight program carried out by the U.S.
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