For fuel they use a hydrogen/liquid oxygen mix for rocket fuel. The thrusters and directional thrusters and main engines on the Space Shuttle all use that for lift off and once in orbit.

Also Satellites launched use it as well.

They do have one ship out there that is heading to do a fly by around a asteroid that is a new type of proplusion that is a test ship, uses ION light to produce thrust. Its called a ION Drive. basically uses the ION light that is expelled from the rear to gain speed.

But for now and 99.9% of what is launched. Its liquid Hydrogen/Oxygen.