Which material which is non-existent in space does a space shuttle have to bring in order to be able to fly?

Explanation

A space shuttle flies into space with the help of rocket power. Once up, the rockets are then detached, and the shuttle runs on its on fuels and oxygen. On Earth, a motor simply draws in the oxygen it needs from the surroundings, but in outer space there is no oxygen, and thus the shuttle needs to bring its own.