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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

    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 to those from …

  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. 15 Famous Astronauts Who Expanded Our Universe - HowStuffWorks

    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 leap" …

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

    Dec 10, 2025 · 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 …

  7. 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.

  8. NASA astronaut comes home after circling Earth 3,920 times

    Dec 10, 2025 · NASA astronaut Jonny Kim is seen outside the Soyuz MS-27 spacecraft, with a gifted Matryoshka Doll, after he landed with Roscosmos cosmonauts Sergey Ryzhikov, and Alexey …

  9. Watch: Nasa astronaut and Roscosmos cosmonauts return to Earth

    Dec 9, 2025 · Nasa's Jonny Kim and cosmonauts Sergey Ryzhikov and Alexey Zubritsky have touched down in Earth after 245 days on the ISS.

  10. Who is Peggy Whitson? Record-holding Iowa astronaut returns to

    Iowa astronaut Peggy Whitson is back in space, this time as the leader of the Axiom Mission 4 to the International Space Station.