A massive, 1-mile-long (1.6 kilometers) chunk of ice has broken off Antarctica’s fast-changing Pine Island Glacier, and NASA satellites captured the dramatic event as the icy surface cracked and ripped apart.
By Kacey Deamer | LIVE SCIENCE
The Pine Island Glacier is one of the largest glaciers within the West Antarctic Ice Sheet, accounting for about 20 percent of the ice sheet’s total ice flow to the ocean, according to NASA scientists. The immense glacier is also one of the least stable, and in recent years, the ice sheet has been quickly retreating and losing massive amounts of ice. Previously, icebergs the size of cities have broken off of the Pine Island Glacier. [Photo Gallery: Antarctica’s Pine Island Glacier Cracks]