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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. 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. 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 …

  6. 2026 set to be the year NASA astronauts fly around the moon again

    3 days ago · The Artemis II mission, which could launch as early as February, is expected to send four astronauts on a trip to the moon, though they won't land on its surface.

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

    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 …

  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. 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 …

  10. 2026 space missions include moon trip, new SpaceX megarocket

    Dec 22, 2025 · 6 spaceflights ahead in 2026, from NASA moon missions to SpaceX Starship In 2026, NASA's first astronaut moon mission since the 1970s and SpaceX's continued …