According to mirror.co.uk,   huge ice island is floating free in Arctic waters after splitting from the Petermann Glacier in northwest Greenland. University of Delaware researcher Andreas Muenchow announced the calving took place in the early morning of August 5 and amounts to the largest ice chunk lost in the Arctic since 1962. It measures 100 square miles and 625 feet thick. The National Ice Center provides a satellite image and map here. more »