This file graphic illustration released from Japan's Institute ...
This file graphic illustration released from Japan's Institute for Unmanned Space Experiment Free Flyer (USEF) shows a system of space solar power system (SSPS) which consists of a large solar power generator and transmission panel. Japan's space agency hopes to by 2030 collect solar power in space and zap it down to Earth, using laser beams or microwaves.
(AFP/HO/File)
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