Satellite imagery has revealed as many as 20 new craters surrounding one of three large craters that were discovered in Siberia last year. Scientists now know of seven craters in the Arctic, though they only have the exact locations of four of them.
"I would compare this with mushrooms: When you find one mushroom, be sure there are few more around," Vasily Bogoyavlensky, deputy director of the Moscow-based Oil and Gas Research Institute, told The Siberian Times. "I suppose there could be 20 to 30 craters more."
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