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When the Sky Split in Two: The Tunguska Event
On the morning of June 30, 1908, in a remote area of eastern Siberia, a strange sight was witnessed in the sky. It began as a column of blue light moving through the atmosphere over the Podkamennaya Tunguska River. Minutes later, a flash filled the horizon and a deafening boom shook the earth. This phenomenon, known as the Tunguska Event, would become known as the largest impact event in recorded history. Shockwaves from the blast could be measured from across the globe. An estimated 80 milli...

The Great Dying: Permian-Triassic Extinction Event
Our planet has gone through many different cycles of life and death over the last 4.5 billion yea...