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Searching the Skies for Alien Laser Beams - The Atlantic
URL: https://www.theatlantic.com/science/archive/2017/04/laser-seti-extraterrestrial/523104/
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Submitted: Mon Apr 17 2017
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CT: UFOSeek News 2015: Searching the Skies for Alien Laser Beams - The Atlantic
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Unlike radio SETI, optical SETI looks for signals in the visible portion of the light spectrum. Lasers travel well over galactic distances. The light, concentrated into a narrow beam that can be 10 times as bright as the sun, would experience less ...