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Sci-fi inspired tractor beams are real, and could solve a major space junk problem
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Yeah, we have hall effect thrusters, but it doesn't really matter, the spacecraft still needs to push the mass of both spacecrafts a pretty significant distance and then return to the orbit of was at.
That's just a lot of work.
I'll admit, that using this for cleaning up geostationary orbit is more viable that leo, but it's still questionable how long this will actually be useful.