The Falcon Rocket is a family of reusable launch vehicles developed by SpaceX. It is designed to transport satellites and cargo to space, as well as crewed missions to the International Space Station. The most notable variants are the Falcon 9 and Falcon Heavy, which are known for their reliability and cost-effectiveness. The Falcon 9 features a two-stage design, while the Falcon Heavy consists of three boosters, making it one of the most powerful operational rockets. Both rockets utilize Merlin engines that run on rocket-grade kerosene and liquid oxygen, allowing for efficient launches and landings.