Astronauts train and work as members of spaceflight crews, conducting scientific research, operating spacecraft, and supporting missions in orbit or beyond Earth. Their work can include experiments, spacecraft operations, spacewalks, robotics, and maintaining complex space systems. Astronauts also spend significant time on Earth training for missions, working with scientists, engineers, and international space agencies.
A strong background in science, technology, engineering, or mathematics is essential. NASA currently requires astronaut applicants to have a master's degree in a STEM field, plus at least three years of related professional experience, while the Canadian Space Agency accepts candidates with strong science or technology backgrounds and advanced professional expertise
Astronauts spend much of their careers training on Earth in laboratories, simulators, aircraft, underwater facilities, and other specialized environments. During missions, they may live and work aboard spacecraft or space stations, conducting experiments, operating equipment, exercising, and maintaining systems in microgravity. The job requires teamwork, adaptability, physical fitness, and the ability to make decisions in demanding environments.
Astronauts spend much of their careers training on Earth in laboratories, simulators, aircraft, underwater facilities, and other specialized environments. During missions, they may live and work aboard spacecraft or space stations, conducting experiments, operating equipment, exercising, and maintaining systems in microgravity. The job requires teamwork, adaptability, physical fitness, and the ability to make decisions in demanding environments.