CLEVELAND — A small robotic surveyor arrives to explore a near-Earth asteroid. Another robotic spacecraft is returning to Earth with a pristine comet surface sample. Meanwhile, a robotic explorer is ...
mileage on the engine increases. That wisdom does not hold true for NASA’s ion engine, whose odometer continues to spin to the delight of its owners. This little engine that could has more than made ...
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Click to open image viewer. This is a cesium ion engine developed by the Electro-Optical Systems, Inc. as an experimental high-energy thruster for spacecraft. Ion engines produce extremely low thrusts ...
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