
Yikes. This book looked like it would be a good recap of our understanding of the Tunguska event, and then you start reading it to find the author believes it was aliens. #science #astronomy #Tunguska
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Yikes. This book looked like it would be a good recap of our understanding of the Tunguska event, and then you start reading it to find the author believes it was aliens. #science #astronomy #Tunguska