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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 to serve as a …

  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 West, astronaut refers …

  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 beyond.

  4. Jared Isaacman is confirmed as NASA chief, a year later : NPR

    Dec 18, 2025 · "Jared's passion for Space, astronaut experience, unlocking the mysteries of the universe, and advancing the new Space economy, make him ideally suited to lead NASA into a bold …

  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. 13 Most Famous Astronauts - Have Fun With History

    Jan 9, 2024 · In this article, we delve into the lives and achievements of some of the most famous astronauts in history.

  7. US Senate confirms private astronaut, Musk ally Jared Isaacman as …

    Dec 17, 2025 · The U.S. Senate on Wednesday confirmed billionaire private astronaut Jared Isaacman to become President Donald Trump's NASA administrator, making an advocate of Mars missions …

  8. Astronaut - New World Encyclopedia

    NASA applies the term astronaut to any crew member aboard NASA spacecraft bound for Earth orbit or beyond. NASA also uses the term as a title for those selected to join its Astronaut Corps.

  9. How Astronauts Work - HowStuffWorks

    Learn who astronauts are and what they do in space and on Earth.

  10. Astronauts | Encyclopedia.com

    May 23, 2018 · An astronaut is a person trained to perform a specific task on a craft designed and intended to travel beyond Earth 's atmosphere. The term "astronaut" derives from the Greek words …