Astronaut

NASA astronaut Bruce McCandless II using a Manned Maneuvering Unit outside Space Shuttle Challenger on shuttle mission STS-41-B in 1984

An astronaut (from the Ancient Greek ἄστρον (astron), meaning 'star', and ναύτης (nautes), meaning 'sailor') is a person trained, equipped, and deployed by a human spaceflight program to serve as a commander or crew member aboard a spacecraft. Although generally reserved for professional space travelers, the term is sometimes applied to anyone who travels into space, including scientists, politicians, journalists, and tourists.[1][2]

"Astronaut" technically applies to all human space travelers regardless of nationality. However, astronauts fielded by Russia or the Soviet Union are typically known instead as cosmonauts (from the Russian "kosmos" (космос), meaning "space", also borrowed from Greek κόσμος).[3] Comparatively recent developments in crewed spaceflight made by China have led to the rise of the term taikonaut (from the Mandarin "tàikōng" (太空), meaning "space"), although its use is somewhat informal and its origin is unclear. In China, the People's Liberation Army Astronaut Corps astronauts and their foreign counterparts are all officially called hángtiānyuán (航天员, meaning "heaven navigator" or literally "heaven-sailing staff").

Since 1961, 600 astronauts have flown in space.[4] Until 2002, astronauts were sponsored and trained exclusively by governments, either by the military or by civilian space agencies. With the suborbital flight of the privately funded SpaceShipOne in 2004, a new category of astronaut was created: the commercial astronaut.

  1. ^ NASA (2006). "Astronaut Fact Book" (PDF). National Aeronautics and Space Administration. Archived from the original (PDF) on 25 October 2007. Retrieved 4 October 2007.
  2. ^ MacKay, Marie (2005). "Former astronaut visits USU". The Utah Statesman. Archived from the original on 26 September 2008. Retrieved 4 October 2007.
  3. ^ "astronaut - Dictionary Definition : Vocabulary.com". vocabulary.com. Retrieved 9 January 2021.
  4. ^ "SpaceX's Crew-3 Launched the 600th Person to Space in 60 Years". 11 November 2021. Archived from the original on 11 March 2022. Retrieved 11 November 2021.