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 to serve as a commander or crew member aboard a spacecraft.
Astronaut | Definition, Facts, & Training | Britannica
2024年12月25日 · 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 …
List of astronauts by name - Wikipedia
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. …
Astronauts - NASA
2024年11月26日 · 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.
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. How to use astronaut in a sentence.
Active Astronauts - NASA
2024年10月11日 · Guion S. Bluford, Jr. was the first African American astronaut. Alan B. Shepard, Jr. was the first American in space. NASA astronauts Kjell Lindgren, Jessica Watkins, and Bob Hines are pictured looking out the SpaceX Dragon Freedom spacecraft’s windows. Nichole Ayers was selected by NASA to join the 2021 Astronaut Candidate Class.
Become An Astronaut - NASA
2024年9月4日 · NASA astronauts have been traveling to space for more than six decades and living there continuously since 2000. Now, NASA’s Artemis program is preparing to land the first woman and the next man on the Moon.
13 Most Famous Astronauts - Have Fun With History
2024年1月9日 · From the first footsteps on the Moon to breaking gender and racial barriers in space exploration, these individuals have not only expanded our understanding of the cosmos but also served as inspirations for generations of aspiring space explorers.
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. and international space missions.
Astronaut | SpaceNext50 | Encyclopedia Britannica
An astronaut is an individual who has flown in outer space. More specifically, astronauts are those persons who went to space aboard a U.S. spacecraft.