What do astronauts do?

The word “astronaut” （太空人） comes from the Greek words “astron nautes”, which means “star sailor.” An astronaut is a highly skilled person who is responsible for conducting space exploration （探索） missions and scientific research （研究）. Astronauts are selected from a diverse （不同的） pool of candidates. Once selected, they undergo extensive （全面的） training and testing to qualify for space missions. Astronauts must show that they can handle the physical rigours （嚴苛） from ...Read More