Plasma propulsion engine

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A plasma propulsion engine is an engine which uses accelerated plasma for propulsion. Though far less powerful than conventional atmospheric rocket engines, plasma engines are able to operate at higher efficiencies and for longer periods of time. Plasma engines are better suited for long-distance inter-planetary space travel missions. They were first developed by Russia in 1963-1965 to propel spacecrafts to Mars. In more recent years, many agencies have developed several forms of plasma fueled engines, including the European Space Agency, Iranian Space Agency and Australian National University, which have co-developed a more advanced type described as a "double level thruster".[1] [2] However, this form of plasma engine is only one of many types.