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 28, 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 …

Nov 28, 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 …

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 …

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.

Nov 26, 2025 · 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 …

As of November 2024, there are 47 active astronauts, 12 management astronauts, and 332 former astronauts or payload specialists, including those who have left NASA, and those who …

Nov 28, 2025 · What does it take to become an astronaut? Erik Gregersen, astronomy and space exploration editor at Encyclopædia Britannica, explaining how to become an astronaut and …

What is an Astronaut? An astronaut is selected and employed by NASA (National Aeronautics and Space Administration) to participate in space exploration missions. Astronauts undergo …

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.