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A comment on A Visionary Project Aims for Alpha Centauri, a Star 4.37 Light-Years Away. Parent comment

Re:A Visionary Project Aims for Alpha Centauri, a Star 4.37 ... by LeifCarrotson on Tuesday April 12, 2016 @04:33PM (#11483324)
It goes back in the general direction of Earth. The reflector needs to be highly efficient, but it doesn't need to be perfectly flat.
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