L3Harris Technologies in Palm Beach County, Florida, has designed and built the RL10 engine for NASA's Artemis II launch, which will send four astronauts into orbit around the moon. The engine, powered by liquid hydrogen and liquid oxygen, provides 25,000 pounds of thrust and has been tested successfully and successfully propeled Artemis I around the lunar moon. If the engine fails to fire, astronauts can return to earth if the manned spacecraft, the Orion, can use this engine to aid in their return to Earth. The launch of Artemis II is set to take place on Wednesday, if weather permits. The project could potentially be used to power missions to Mars, where scientists believe there is potential for water in permanently-hendened craters on the moon to be used as fuel.