* In the United States and many other countries: "Astronaut" refers to any person who travels in space. This includes people who have flown on space shuttles, the International Space Station, and even private spaceflights.
* In Russia: "Astronaut" specifically refers to a person who travels in space on a Russian spacecraft. Russians use the term "cosmonaut" to refer to all space travelers, regardless of their nationality.
So, while "astronaut" is a common term used worldwide, it's important to remember the distinction in Russia.
Overall, an astronaut is a person who has traveled beyond Earth's atmosphere, experiencing the wonder and challenges of space exploration. They are trained professionals who undergo rigorous physical and mental preparation for their missions.
