Feb. 1, 2012 — NASA’s Terra Earth-observing satellite captured this image of Pine Island Glacier in West Antarctica on Nov. 13, 2011, after a research team discovered a huge 19-mile (30-km) -long crack running across it.
Members of the Operation IceBridge mission spotted the crack during a DC-8 flight over Pine Island Glacier (PIG) on Oct. 14, 2011. It’s estimated to be up to 260 feet (80 meters) wide and 195 feet (60 meters) deep.
Eventually the crack will shear the glacier off completely, creating an ice island spanning 350 square miles (900 sq. km).