on November 20, 1998 the international was launched into space. NASA uses the space station to help know what it is like to live and work in space. There are 5 bedrooms, 2 bathrooms, and a gym, the station can hold up to one million pounds.Up to 6 people can live in the space station at a time. I find it amazing how you can get taller when you are in space. The reason why is because there is no gravity holding you down and putting pressure on your spine. So when you are up in space your spine will stretch as there is no gravity. But when you return back to Earth you return back to normal height.  Since the astronauts in space do not walk they float, there spine and leg muscles start to decrease.