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This week we look at the concepts of panspermia or "cosmic ancestry," the Zoo Hypothesis, and whether alien life may already exist on Earth.
This week we look at the concepts of panspermia or "cosmic ancestry," the Zoo Hypothesis, and whether alien life may already exist on Earth. read more read less

3 years ago #alien, #astronomy, #cosmicancestry, #fermiparadox, #meti, #panspermia, #seti, #uap, #ufo, #zoohypothesis