Rocket Stage
A rocket stage is a section of a rocket that contains its own engines and propellant, and is used to provide thrust during the launch and ascent phases of a rocket's flight. A rocket typically consists of multiple stages, each of which is jettisoned once its propellant is expended. This allows the rocket to shed weight and increase its velocity as it ascends into space. The first stage of a rocket is typically the largest and contains the most propellant, while subsequent stages are smaller and contain less propellant. Rocket stages can be powered by a variety of fuels, including liquid hydrogen, kerosene, and solid propellants.
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