The four segments of this video show what it takes to put astronauts into space and to keep them there as they live and work.
The space shuttle - meet scientists and explorers who ride rockets into space.
Support staff - behind every astronauts, there's a team making sure each voyage is safe and successful.
Zero gravity - managing the effects of low gravity on the body is crucial for astronauts working in space.
Living in space - Dr Sally Ride, America's first woman in space, explains how the new space station will operate.