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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. Astronauts - NASA

    Sep 22, 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 …

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

    Oct 1, 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 …

  4. NASA unveils 10 new astronauts for missions to the moon — and ...

    Sep 22, 2025 · NASA revealed the members of its 2025 astronaut class, the 24th group in the agency's history — some of whom may be among the first people to set foot on Mars.

  5. NASA selects 10 new astronauts as it chases bold plans for ...

    Sep 22, 2025 · NASA on Monday introduced the 10 people who will join the agency’s astronaut corps as it races to return humans to the moon.

  6. 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.

  7. Astronaut Fact Book - NASA

    As of November 2024, there are 47 active astronauts, 12 management astronauts, and 332 former astronauts or payload specialists, including those who have left NASA, and those who …

  8. 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 …

  9. NASA introduces 10 new astronaut candidates - CBS News

    Sep 23, 2025 · The new selection of NASA astronauts will spend two years in training before becoming eligible for flight assignments.

  10. Astronaut - Pioneers, Explorers, Heroes | Britannica

    Oct 1, 2025 · Achieving spaceflight enabled humans to begin to explore the solar system and the rest of the universe, to understand the many objects and phenomena that are better observed …