The main job of an astronaut is to conduct scientific experiments and keep the space station in working order. It is important that they work well as a team and collaborate efficiently with the controllers and scientists back on Earth.
Most of the time their tasks are performed inside the ISS, but when they venture outside, for example to maintain the solar panels, they must wear special spacesuits for protection.
Astronauts must stick to strict routines whilst living in space, to make sure they stay safe, healthy, and happy. Astronauts do daily exercise and eat nutritious foods to keep fit and healthy in space. In their free time, astronauts do a lot of things similar to what we do on Earth, like relaxing, cleaning and talking to friends and family.