Jul 17, 2014
Scientists estimate that there are over 100,000 intelligent alien civilizations in our galaxy—but we never see evidence of anyone. Here are 13 reasons why.
seen from United States
seen from United Kingdom
seen from Netherlands
seen from Netherlands
seen from China
seen from China
seen from Singapore
seen from United States
seen from Türkiye
seen from China
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seen from Russia
seen from Russia
seen from United States
seen from Japan
seen from Canada
seen from China
seen from Argentina
seen from Australia
seen from United Kingdom
Scientists estimate that there are over 100,000 intelligent alien civilizations in our galaxy—but we never see evidence of anyone. Here are 13 reasons why.