On June 30, 1908, a massive mysterious explosion of a cosmic body shook the skies of Tunguska (in Siberia), on a date that would come to be known as International Asteroid Day. But was it an asteroid? Andy Bruno discusses the history surrounding the event.
Written by Andy Bruno. Narration by Dr. Nicholas B. Breyfogle. Video production by Laura Seeger and Dr. Nicholas B. Breyfogle.
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