cosmonaut
A cosmonaut is a person trained to travel and work in space. The term is primarily used in Russia and refers to astronauts who are part of the Russian space program. Cosmonauts undergo rigorous training to prepare for the physical and mental challenges of space travel, including learning how to operate spacecraft and conduct scientific experiments in microgravity.
Cosmonauts often participate in missions aboard the International Space Station (ISS), where they conduct research and experiments that benefit life on Earth. They may also work on missions to explore other celestial bodies, contributing to our understanding of the universe and the potential for human life beyond Earth.