Solid rocket motors are propulsion devices that use solid propellants to produce thrust. Unlike liquid rocket engines, which rely on fuel and oxidizer stored in separate tanks, solid rocket motors contain all their fuel in a solid form. When ignited, the propellant burns from the inside out, generating hot gases that are expelled through a nozzle, propelling the rocket forward. These motors are commonly used in various applications, including space launch vehicles and military missiles. Notable examples include the Space Shuttle boosters and the Minuteman intercontinental ballistic missile. Their simplicity, reliability, and high thrust-to-weight ratio make them popular choices for many aerospace missions.