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 …

4 days ago · 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 …

5 days ago · 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 …

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 days 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.

Nov 25, 2025 · NASA will provide live coverage as astronaut Chris Williams and two Russians launch to the International Space Station on Thanksgiving.

6 hours ago · NASA has acknowledged Russia's Baikonur Cosmodrome sustaining severe damage following a botched Soyuz launch last week.

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

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 …

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