SpaceX Starship
Also at the bottom of the Starship spacecraft are the Raptor Vacuum engines. They are Raptor engines with larger nozzles. The Raptor Vacuum only works in space and is more efficient than the normal Raptor engine. The Raptor 2 engine is the next generation of the Raptor and Raptor Vacuum engines. They will be used in Super Heavy and Starship sometime in the future.