JOE TUCCIARONE / SCIENCE PHOTO LIBRARY JOE TUCCIARONE / SCIENCE PHOTO LIBRARY
Animation of the Tunguska comet approaching Earth. On 30th June 1908, a body impacted remote forest in the Tunguska region of Siberia, Russia. It flattened more than 2000 square kilometres of trees, although no fatalities were recorded. The impacting body is thought to have been a comet, as little if any of it reached the ground, as would be expected for a massive rocky body.
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