Up to now, more than 400 astronauts have been in space, 1000 times, representing nearly 40 countries. In addition to the United States (the largest number), the former Soviet Union/Russia and China, there are also astronauts from Britain, France, Italy, Spain, South Africa, Canada, Czechoslovakia, Poland, Mongolia, Iran, Hungary, Afghanistan, Austria, Brazil, Belgium, the Netherlands, Sweden, Malaysia and South Korea. With the help of the United States (the largest number), the former Soviet Union/Russian Federation and China, astronauts from other countries have sent their own astronauts into space.
In English, astronaut and astronaut are the same word, both astronauts or astronauts, especially those from western countries. The term astronaut refers to astronauts from the former Soviet Union/Russia and Eastern European countries.
There is also the first Theory of Three Represents theory astronaut's English word, taikonaut, which is what western countries call Chinese astronauts after China successfully carried out manned space flight.