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  1. Astronaut - Wikipedia

    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 …

  2. Astronaut | Definition, Facts, & Training | Britannica

    Nov 28, 2025 · Astronaut, designation, derived from the Greek words for ‘star’ and ‘sailor,’ commonly applied in the West to an individual who has flown in outer space. As of 2022, 587 …

  3. Astronauts - NASA

    5 days ago · The term “astronaut” derives from the Greek words meaning “star sailor,” and refers to all who have been launched as crew members aboard NASA spacecraft bound for orbit and …

  4. 15 Famous Astronauts Who Expanded Our Universe

    Apr 25, 2025 · Some brave explorers travel across oceans; others blast off into space. This list of famous astronauts celebrates the pioneers of space exploration — those who took "one giant …

  5. ASTRONAUT Definition & Meaning - Merriam-Webster

    The meaning of ASTRONAUT is a person whose profession is to travel beyond the earth's atmosphere; broadly : any person who travels beyond the earth's atmosphere.

  6. NASA astronaut back on Earth after 8 months on space ...

    2 days ago · NASA astronaut Jonny Kim flew home with two Roscosmos cosmonauts from the International Space Station packed tight in their Soyuz spacecraft landing in the frozen …

  7. NASA astronaut comes home after circling Earth 3,920 times

    2 days ago · NASA astronaut Jonny Kim is carried to a medical tent shortly after he, and Roscosmos cosmonauts Sergey Ryzhikov, and Alexey Zubritsky, landed in their Soyuz MS-27 …