Hybrid propellants are a type of rocket fuel that combines both solid and liquid components. In this system, a solid fuel is burned with a liquid oxidizer, which helps to enhance the combustion process. This combination allows for better control over the thrust and burn rate compared to traditional solid or liquid propellants alone. One of the main advantages of hybrid propellants is their safety and simplicity. Since the oxidizer is stored in liquid form, it can be turned on or off as needed, making it easier to manage during a launch. This technology is being explored by various space agencies and companies, including SpaceX and Virgin Galactic, for future space missions.