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[-]  06-11-18 20:40

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Existing Laser Technology Could Be Fashioned Into Earth's 'Porch Light' To Attract Alien Astronomers, Study Finds
If extraterrestrial intelligence exists somewhere in our galaxy, a new MIT study proposes that laser technology on Earth could, in principle, be fashioned into something of a planetary porch light -- a beacon strong enough to attract attention from as far as 20,000 light years away. From a report: The research, which author James Clark calls a "feasibility study," appears today in The Astrophysical Journal. The findings suggest that if a high-powered 1- to 2-megawatt laser were focused through a...

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