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 …

Nov 19, 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 …

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 …

13 hours ago · American astronomer-turned-medical physicist and now NASA astronaut Chris Williams joined two Russian cosmonauts aboard a Soyuz ferry ship Thursday for a …

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.

2 days ago · NASA will provide live coverage as astronaut Chris Williams and two Russians launch to the International Space Station on Thanksgiving.

This is an alphabetical list of astronauts, people selected to train for a human spaceflight program to command, pilot, or serve as a crew member of a spacecraft. For a list of everyone who has …

1 day ago · NASA's Chris Williams and two cosmonaut colleagues will launch to the International Space Station early on Thanksgiving Day (Nov. 27), and you can watch the action live.

3 days ago · When NASA’s 2025 astronaut candidates arrived at the agency’s Johnson Space Center in Houston this fall, they stepped into history, sharing a common mission to master the …

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 …