A deep freeze has settled in over the Great Lakes this winter and a new image released by NASA shows the astonishing extent of the ice cover as seen from space.
NASA's Aqua satellite captured this image of the lakes on the early afternoon of Feb. 19. At the time, 80.3 percent of the five lakes were covered in ice, according to the Great Lakes Environmental Research Laboratory (GLERL), part of the National Oceanic and Atmospheric Administration.
Earlier this month, ice cover over the Great Lakes hit 88 percent for the first time since 1994. Typically at its peak, the average ice cover is just over 50 percent, and it only occasionally passes 80 percent, according to NASA's Earth Observatory.