Astronauts undergo extensive training to prepare for space missions, which includes physical fitness, simulations of space environments, and learning how to operate spacecraft and handle emergencies. NASAβs astronaut training program, for example, includes underwater training to simulate zero-gravity conditions, as well as survival training for emergency landings in remote areas.
In addition to the physical and technical training, astronauts also train mentally for the isolation and psychological challenges of long-duration space missions. This training is essential for ensuring the safety and success of space missions, from traveling to the Moon to exploring Mars.