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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

    5 天之前 · 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 individuals …

  3. Astronauts - NASA

    2025年9月22日 · 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 …

  4. 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.

  5. 15 Famous Astronauts Who Expanded Our Universe

    2025年4月25日 · 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 …

  6. What it really took to become an astronaut during the Space ...

    1 天前 · What it really took to become an astronaut during the Space Race As NASA prepared astronauts for its second mission into space, National Geographic had exclusive behind-the …

  7. Complete List of Astronauts | NASA & Global Space Explorers

    Discover a definitive list of astronauts from NASA, ESA, Roscosmos, and more. Explore bios, mission details, and careers of global space explorers, past and present. Your ultimate …