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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. 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.

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

    Nov 28, 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 …

  4. NASA astronaut back on Earth after 8 months on space station

    5 days ago · NASA astronaut Jonny Kim flew home with two Roscosmos cosmonauts from the International Space Station packed tight in their Soyuz spacecraft landing in the frozen steppes of …

  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. Watch 3 astronauts land on Earth aboard Russian spacecraft early Dec. 9

    Dec 8, 2025 · NASA's Jonny Kim and two cosmonauts are scheduled to land just after midnight on Tuesday (Dec. 9). Three astronauts will come back to Earth early Tuesday morning (Dec. 9), and …

  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 resource for astronaut …

  8. NASA Astronaut Corps - Wikipedia

    The NASA Astronaut Corps is a unit of the United States National Aeronautics and Space Administration (NASA) that selects, trains, and provides astronauts as crew members for U.S. and international …

  9. Active Astronauts - NASA

    Nov 25, 2025 · Alan B. Shepard, Jr. was the first American in space. Neil Armstrong was the first man to walk on the moon. John H. Glenn, Jr. was the first American to Orbit the Earth. Sally K. Ride was the …

  10. LA-born NASA astronaut Jonny Kim returns to Earth after 245 days – …

    6 days ago · NASA astronaut Jonny Kim, who was born and raised in Los Angeles, returned to Earth Tuesday after 245 days in space.