RP-1 is a highly refined rocket propellant used primarily in space exploration. It is a type of kerosene that is specifically designed for use in rocket engines, providing a high energy output while remaining stable and safe to handle. RP-1 is often combined with liquid oxygen (LOX) to create a powerful fuel mixture that propels rockets into space. One of the most notable uses of RP-1 is in the Falcon 9 rocket developed by SpaceX. This rocket has successfully launched numerous satellites and resupplied the International Space Station (ISS). The efficiency and reliability of RP-1 make it a popular choice for many space missions.