Hypergolic propellant

Hypergolic propellants are a type of rocket fuel that ignite spontaneously upon contact with each other, eliminating the need for an external ignition source like a spark or flame. Typically, they consist of a fuel, such as hydrazine, and an oxidizer, like nitrogen tetroxide. This property allows for reliable and precise engine control, making hypergolic propellants popular in space missions, particularly for spacecraft thrusters and orbit maneuvers. However, they are highly toxic and require careful handling.