An Orbiting Garbage Collector That Eats Space Junk To Fuel Itself

Space junk--both manufactured and natural--has been orbiting our planet and threatening satellites and spacecraft with collisions. And accordingly, engineers and scientists have been devising ways to get rid of the mess. But whether it's a spacefaring robot or spacecraft carrying nets or traps, it requires power, and that's an expensive prospect. So, engineers at the Tsinghua University in Beijing have proposed a design concept for a space debris engine that can eat its way through the junk and convert it into plasma fuel to sustain its mission

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