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MyWikiBiz, Author Your Legacy — Sunday April 28, 2024
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- ...ve, communicative [[extraterrestrial life|extraterrestrial civilizations]] in the [[Milky Way]] [[Galaxy]].<ref name="Burchell"/><ref>{{cite journal |las The equation was formulated in 1961 by [[Frank Drake]], not for purposes of quantifying the number of civi67 KB (9,711 words) - 13:44, 22 January 2022