Astronaut - Wikipedia
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 …
Astronaut | Definition, Facts, & Training | Britannica
Nov 28, 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 …
Astronauts - NASA
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 …
ASTRONAUT Definition & Meaning - Merriam-Webster
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.
NASA astronaut back on Earth after 8 months on space station
Dec 10, 2025 · NASA astronaut Jonny Kim flew home with two Roscosmos cosmonauts from the International Space Station packed tight in their Soyuz spacecraft landing in the frozen …
US Senate confirms private astronaut, Musk ally Jared Isaacman …
3 hours ago · The U.S. Senate on Wednesday confirmed billionaire private astronaut Jared Isaacman to become President Donald Trump's NASA administrator, placing an advocate of …
NASA Astronaut Corps - Wikipedia
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. …
Active Astronauts - NASA
Nov 25, 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. …
LA-born NASA astronaut Jonny Kim returns to Earth after 245 …
Dec 9, 2025 · NASA astronaut Jonny Kim, who was born and raised in Los Angeles, returned to Earth Tuesday after 245 days in space.
Astronaut - New World Encyclopedia
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.