Crater bigger than Paris discovered under Greenland ice
Scientists have discovered a 31-kilometre wide crater buried under ice-sheet in northern Greenland. The crater, bigger than Paris in size, was caused by a kilometre-wide iron meteorite that struck the Earth between 12,000 years and 3 million years ago. This is the first time that a crater has been found under one of Earthâs continental ice sheets, the researchers said. 