Did you know that training for a spacewalk requires a 6.5 million gallon swimming pool, a team of divers, and a mock-up of the International Space Station? Astronauts have to train for a variety of different jobs they have to do in low Earth orbit. Once on the station, astronauts run science experiments (sometimes on themselves), fix toilets, and run the robotic arm. Do you think you have what it takes to complete astronaut training? Find out on this STEM in 30.