宇航员英文怎么写

Astronaut...

An astronaut is a person who travels and works in outer space. They are highly trained individuals who undergo rigorous physical and mental preparations to undertake space missions. In English, the word "astronaut" is used to refer to these space explorers.

The term "astronaut" was coined by NASA, the National Aeronautics and Space Administration of the United States. It is derived from two Greek words: "astro," meaning "star," and "naut," meaning "sailor." Thus, an astronaut can be described as a "star sailor," someone who sails through the vastness of space.

Becoming an astronaut requires exceptional skills and qualifications. Most astronauts come from a background in science, engineering, or aviation. They often have advanced degrees in fields such as physics, mathematics, or aerospace engineering. In addition to educational qualifications, they also undergo intensive physical training to prepare their bodies for the effects of living and working in microgravity.

Astronauts may be assigned to various missions, such as conducting scientific experiments, repairing satellites, or even building and maintaining the International Space Station (ISS). They spend extended periods of time in space, usually for several months at a time. During their missions, astronauts have to adapt to living in confined spaces and coping with the challenges of weightlessness.

In order to be selected as an astronaut, candidates must undergo a rigorous selection process. This typically includes physical and psychological evaluations, as well as interviews and assessments of technical skills. The selection process is highly competitive, with thousands of applicants vying for only a few available spots.

Once selected, astronauts undergo extensive training to prepare them for the specific mission they will be assigned to. This training includes learning about the spacecraft they will be flying, practicing spacewalks in a neutral buoyancy lab, and undergoing simulations of different scenarios they may encounter in space.

The work of astronauts extends beyond their missions in space. They also contribute to scientific research, technological advancements, and public outreach programs. They serve as role models and inspire future generations to pursue careers in science and space exploration.

In conclusion, the term "astronaut" is used in English to refer to individuals who travel and work in outer space. Astronauts undergo rigorous training and possess exceptional skills to perform their duties in microgravity environments. They contribute to scientific research and advancements while inspiring future generations to explore and reach for the stars.

除此之外，还有：

Astronaut