stations International Space Station (ISS) (2000) Multinational low Earth orbit modular space station. The International Space Station is a joint project among five participating space agencies: NASA, Roscosmos, JAXA, European Space Agency (ESA), and Canadian Space Agency (CSA). Uncrewed initial assembly 1998–2000. Continuously crewed since November 2000. As of June 2022, ISS has been visited by 105 crewed spacecraft (66 Soyuz, 35 Space Shuttle, and 5 Crew Dragon). The ISS is the largest space station yet constructed. Planned to operate until 2028, with a possible extension to 2030. Tiangong Space Station (2021) Chinese low Earth orbit modular space station. The Tianhe core module was launched on 29 April 2021. The first crewed flight Shenzhou 12 with 3 astronauts arrived at the station in June 2021. The space station has three modules: the Tianhe core module, and two Laboratory Cabin Modules. The Wentian module docked to the station on 24 July 2022, and the Mengtian module docked on 31 October 2022. Former crewed spacecraft Vostok (1961–1963) Soviet single-person Earth orbital spacecraft 6 flights. On 12 April 1961 Vostok 1 carried the first human into space, Cosmonaut Yuri Gagarin. On 16 June 1963, Vostok 6 carried the first woman into space, Cosmonaut Valentina Tereshkova. Mercury (1961–1963) United States single-person Earth orbital spacecraft 6 flights (including 2 sub-orbital). Mercury was the United States first crewed spacecraft. On 5 May 1961 Mercury-Redstone 3 carried the first American, Alan Shepard, into space on a sub-orbital flight. On 20 February 1962, Mercury-Atlas 6 carried the first American, John Glenn, into Earth orbit. X-15 (1962–1968) United States single seat, air-launched sub-orbital spaceplane; two X-15 flights above the 100 km Kármán line occurred in 1963, an additional 11 flights between 1962 and 1968 reached altitudes between 80–100 km which were recognised as spaceflights by U.S. authorities. Voskhod (1964–1965) Soviet three person Vostok derivative made 2 flights. On 18 March 1965, Alexei Leonov performed the first spacewalk in history, from Voskhod 2. Gemini (1965–1966) United States two person Earth orbital spacecraft 10 flights. On 3 June 1965, Ed White made America's first spacewalk, from Gemini 4. Apollo (1968–1975) United States three person lunar-capable spacecraft. 15 flights; including nine lunar missions (with six lunar landings). It was the Apollo spacecraft that enabled America to win the Space Race. In December 1968, Apollo 8 was the first crewed spacecraft to orbit the Moon. On 21 July 1969, Neil Armstrong, the Commander