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 …

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 …

19 hours ago · Friday, Jan. 9, 2026: Updates on NASA's astronaut medical evacuation from the International Space Station.

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 …

1 day ago · After canceling a spacewalk planned for Thursday, the space agency’s administrator said it was erring on the side of caution and bringing a crew of four home in the coming days.

NASA has 10 new astronauts chosen from more than 8,000 applicants. Six of them are women, the first time in NASA history that an incoming astronaut class is mostly female.

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 …