of Apollo 11, and Buzz Aldrin became the first humans to walk on the Moon. The Apollo Spacecraft comprised: The Apollo command and service module (1968–1975), three person Earth and lunar orbital craft The Apollo Lunar Module (1969–1972), two person lunar lander Space Shuttle (1981–2011) United States eight person Earth orbital spacecraft; first orbit-capable spaceplane; first reusable orbital spacecraft. Largest cargo capacity to orbit. 135 spaceflights were made in five shuttles; Columbia, Challenger, Discovery, Atlantis, and Endeavour, of which two (Challenger and Columbia) were accidentally destroyed resulting in the deaths of 14 astronauts during missions STS-51-L and STS-107. SpaceShipOne (2004) United States single pilot, air-launched sub-orbital spaceplane; three flights above the Kármán line occurred in 2004. Former space stations Salyut (1971–1986) Soviet/Russian low Earth orbit space stations. Salyut 1 (1 crew 1971), Salyut 4 (2 crews 1975), Salyut 6 (6 crews 1977-1981), and Salyut 7 (12 crews 1982-1986). All now de-orbited. Almaz (1974–1977) Soviet military reconnaissance low Earth orbit space stations. Badged as Salyut 3 (1 crew 1974), and Salyut 5 (2 crews 1976-1977), as disinformation. Both now deorbited. Skylab (1973–1974) United States low Earth orbit space station. First United States space station. Visited by 3 crews 1973-1974. It deorbited in 1979. Mir (1986–2000) Soviet/Russian low Earth orbit modular space station. The first modular space station in history. Twenty-eight crews 1986-2000. Mir was visited by 29 Soyuz and 7 Space Shuttle missions. Mir was deorbited in 2001. Tiangong program (2012–2016) Chinese low Earth orbit space laboratories. Tiangong 1 was China's first space station; launched in 2011, visited by 2 crews 2012-2013, deorbited in 2018. Tiangong 2 was launched in 2016, visited by 1 crew in 2016, deorbited in 2019. Both vehicles were single-module laboratories, precursors to the modular Tiangong space station, which is planned to have modules derived from Tiangong 1 and 2. Crewed spacecraft in development Starliner United States five person (initially seven) Earth orbital spacecraft designed to transport astronauts to the International Space Station under the NASA Commercial Crew Program. Following several technical problems on the first uncrewed test flight in December 2019, a second uncrewed test flight launched in May 2022, with the first crewed flight test (CFT) scheduled for no earlier than April 2023. Orion A spacecraft capable of lunar missions with a crew of four, planned to be used as part of NASA's Artemis program. Consisting of two components – a Crew Module (CM) manufactured