Scientists Confirm Discovery Of 40 Huge Craters At The Bottom Of Lake Michigan NDTVScientists confirm there are 40 huge craters at the bottom of Lake Michigan Livescience.comAround 40 Circular Structures Confirmed To Be Stretching Under Lake Michigan IFLScienceScientists Stumped by "Dozens" of Gigantic Holes at the Bottom of a Lake FuturismScientists photograph mysterious craters found at the bottom of Lake Michigan CBS Chicago