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 …

3 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 …

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 …

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.

Sep 16, 2025 · Alan B. Shepard, Jr. was the first American in space. Neil Armstrong was the first man to walk on the moon. John H. Glenn, Jr. was the first American to Orbit the Earth. Sally K. …

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 …

Oct 1, 2025 · Astronaut - Pioneers, Explorers, Heroes: Notable astronauts are listed chronologically in the table.

The NASA Astronaut Corps is a unit of the United States National Aeronautics and Space Administration (NASA) that selects, trains, and provides astronauts as crew members for U.S. …

3 days ago · 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 …