Spacecraft propulsion is any method used to accelerate spacecraft and artificial satellites.
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Spacecraft propulsion is any method used to accelerate spacecraft and artificial satellites.
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Several methods of pragmatic spacecraft propulsion have been developed each having its own drawbacks and advantages.
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Hypothetical in-space Spacecraft propulsion technologies describe the Spacecraft propulsion technologies that could meet future space science and exploration needs.
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In-space Spacecraft propulsion begins where the upper stage of the launch vehicle leaves off; performing the functions of primary Spacecraft propulsion, reaction control, station keeping, precision pointing, and orbital maneuvering.
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When in space, the purpose of a propulsion system is to change the velocity, or v, of a spacecraft.
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Ion Spacecraft propulsion engines have high specific impulse and low thrust whereas chemical rockets like monopropellant or bipropellant rocket engines have a low specific impulse but high thrust.
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In-space Spacecraft propulsion represents technologies that can significantly improve a number of critical aspects of the mission.
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The requirements for in-space Spacecraft propulsion vary widely due according to their intended application.
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Electric Spacecraft propulsion is commonly used for station keeping on commercial communications satellites and for prime Spacecraft propulsion on some scientific space missions because of their high specific impulse.
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One system combines solar sails, a form of propellantless Spacecraft propulsion which relies on naturally-occurring starlight for Spacecraft propulsion energy, and Hall thrusters.
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Variety of hypothetical Spacecraft propulsion techniques have been considered that require a deeper understanding of the properties of space, particularly inertial frames and the vacuum state.
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For rocket-like Spacecraft propulsion systems this is a function of mass fraction and exhaust velocity.
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Spacecraft propulsion systems are often first statically tested on Earth's surface, within the atmosphere but many systems require a vacuum chamber to test fully.
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