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Friday, April 17, 2015
A Scan Of 100,000 Galaxies Shows No Sign Of Alien Mega-Civilizations
A Scan Of 100,000 Galaxies Shows No Sign Of Alien Mega-Civilizations
http://io9.com/a-scan-of-100-000-galaxies-shows-no-sign-of-kardashev-i-1697932767
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