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 to serve as a commander or crew member aboard a spacecraft.

Dec 25, 2024 · 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 individuals from 41 countries had gone into orbit; 518 of …

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 flown in space, see List of space travelers by name. …

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. How to use astronaut in a sentence.

Jan 29, 2025 · Today there are usually seven astronauts living on board at any given time, from a variety of countries. The first class of NASA astronauts was selected in 1959. They are known as the Mercury 7. Since inception, NASA has selected 360 astronaut candidates: 299 men, 61 women; 212 military, 138 civilians; 191 pilots, 159 non-pilots.

15 hours ago · A NASA astronaut is seen as the Earth's surface passes by in the background on the International Space Station, in this handout photo taken February 21, 2015, provided by NASA.

Dec 9, 2024 · The astronauts joined a panel from aboard the International Space Station to discuss what it’s like to be an astronaut, how people can get involved with space station research and technology, and how to apply to become an astronaut.

Mar 4, 2020 · NASA’s astronauts currently work as scientists on the International Space Station—a laboratory that orbits Earth approximately 240 miles above the planet’s surface. Astronauts on the station conduct scientific experiments such as innovative cancer research and research on the human body and living in space.

The Astronaut Corps is based at the Lyndon B. Johnson Space Center in Houston, although members may be assigned to other locations based on mission requirements, e.g. Soyuz training at Star City, Russia.. The Chief of the Astronaut Office is the most senior leadership position for active astronauts in the Corps. The Chief Astronaut serves as head of the Corps and is the …

Feb 13, 2025 · Williams has been a NASA astronaut since 1998, and Wilmore since 2000. Both have plenty of experience in space. Williams is the former record holder for most spacewalks by a woman (seven) and most ...