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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

    Dec 17, 2025 · astronaut, designation, derived from the Greek words for “star” and “sailor,” commonly applied to an individual who has flown in outer space. More specifically, in the …

  3. Astronauts - NASA

    Dec 8, 2025 · 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. ISS astronaut medical evacuation latest news: SpaceX readies ...

    1 day ago · ISS astronaut medical evacuation latest news: SpaceX readies Dragon spacecraft for Crew-11 return to Earth Saturday, Jan. 10, 2026: Updates on NASA's astronaut medical …

  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 to bring space station astronauts back to Earth early

    2 days ago · The astronaut's "medical incident was sufficient enough," he said, that NASA decided to bring Crew-11 back early due to "lingering risk." The Crew-11 astronauts' return …

  7. 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 …