Astronaut
An astronaut is a person who is trained to travel in a spacecraft and perform various tasks during a mission. Astronauts undergo rigorous physical and mental training to prepare for the challenges of spaceflight, including weightlessness, radiation exposure, and isolation. They are responsible for operating spacecraft systems, conducting scientific experiments, and performing spacewalks to maintain and repair equipment. Astronauts work closely with ground control teams to ensure the success of their missions and to troubleshoot any issues that may arise. They must also be able to work effectively as part of a team, communicate clearly, and make quick decisions in high-pressure situations. The term astronaut is typically used by NASA and other space agencies in the United States, while other countries may use different terms such as cosmonaut or taikonaut.
Your Previous Searches
Random Picks
- Star Formation: Star formation is the process by which dense regions within molecular clouds in interstellar space, sometimes referred to as stellar nurseries or star-forming regions, collapse and form stars. As a branch of astronomy, star formation includ ... Read More >>
- GPS Receivers: GPS receivers are electronic devices that receive signals from GPS satellites and use the information to determine the receiver's location, velocity, and time. The receiver calculates its position by measuring the time it takes for signals ... Read More >>
- Radiation Detection: Radiation detection is the process of identifying and measuring the presence and intensity of ionizing radiation in a given environment. This is crucial in space and astronautical engineering as exposure to ionizing radiation can have harmf ... Read More >>
Top News
Check out this interactive map of the early universe, considered largest ever cr...
A team of astronomers have put together the largest, most detailed map of the universe ever created – and you can explore it now....
News Source: USA Today on 2025-06-12
The Vera C. Rubin Observatory is about to totally transform astronomy...
With the ability to scan the entire southern night sky every three days, the huge Vera C. Rubin Observatory could be about to start solving the mysteries of the universe, from dark matter to Planet Ni...
News Source: New Scientist on 2025-06-12
Trump's proposed science cuts will have huge consequences...
The universe will still be there to marvel at, despite brutal cuts set to hit NASA and the National Science Foundation's budgets. But the damage to future research will be long-lasting, says Chanda Pr...
News Source: New Scientist on 2025-06-11
Starlink satellites are leaking radio signals that may ruin astronomy...
Our ability to study faint radio signals from when the first stars began to form is being threatened by SpaceX's Starlink satellites, which seem to be unintentionally leaking radio signals that overpo...
News Source: New Scientist on 2025-06-09
Asteroids around Venus pose possible 'invisible threat' to Earth: Should you be ...
A swarm of large asteroids likely lurking around Venus could one day pose an "invisible threat" to Earth if left unchecked, astronomers have warned....
News Source: USA Today on 2025-06-06