Bioastronautics is the study of how people live and work in space. It looks at things like how astronauts stay healthy in space and how they do experiments in outer space. It also looks at how to make sure astronauts are safe while they are in space, and how to get them back to Earth when they're done. Bioastronautics combines knowledge of biology, astronomy, physics, and engineering to understand how to keep astronauts safe and healthy while they are in space!