The space shuttle was like a moving van. It took satellites to space so they could orbit Earth. The shuttle carried large parts into space to build the International Space Station. The space shuttle was also like a science lab. Astronauts did experiments there. They are made up of what is called a porous silicon material that is very light and extremely heat resistant. What is unique about the space shuttle?NASA's space shuttle was the world's first reusable spacecraft. It launched like a rocket and returned to Earth like a glider, landing like an airplane on a long concrete runway. It was designed to carry large payloads — such as satellites — into orbit and bring them back, if necessary, for repairs.