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ESA's air-breathing thrusters help keep satellites alive longer
Satellites could soon remain in orbit for years on end thanks to new technology that turns air molecules into propellant. A European Space Agency (ESA) team has developed an electric thruster that collects molecules from the top of the atmosphere and gives them electric charges so they can be accelerated and ejected to provide thrust. This could create a new class of satellites able to operate in orbit for long stretches.
