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For those worrying about the next asteroid to hit Earth, these two articles on the Tunguska bolide (an exploding asteroid) will surprise.
Electro-physical phenomena was experienced in the region in advance of the event, and the event itself left many mysteries that only plasma physics currently explains.
Part One here
, and Part Two here
Also, three great articles on the cause of the Chicage fire and the more disastrous Pestigo fire in Wisconsin and ones in Michigan which occured at the same moment. Ist article here