This list shows fuels used by rockets. Electricity is used to power probe cores and Ion engines. Liquid fuel is used with liquid fuel rockets. Monopropellant is used with RCS (Reaction Control System) thrusters. Oxidizer is a fuel found in liquid fuel tanks. Solid fuel is used in Solid Rocket Boosters, and Xenon Gas is found in canisters, such examples include the PB-X150 Xenon Container.