This vast comet impact changed Earth forever with firestorms
 

https://c.slashgear.com/wp-content/u...rm-575x383.jpgFragments of a 62 mile comet plunged Earth into a vast firestorm, scientists claim, with millions of square miles consumed by fire. The inferno took place roughly 12,800 years ago, new research has theorized. While it was, until now, effectively unknown, the scientists believe the comet’s impact was greater than that which caused the dinosaurs to go extinct. Dubbed an … Continue readinghttp://feeds.feedburner.com/~r/slashgear/~4/tn7PLUmxU1Y

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