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Snow Fills Antarctic Glacier Rift

A nascent iceberg breaks off Pine Island Glacier's calving front. Icebergs in this area of the Amundsen Sea most often rise between 150 and 200 feet above the water surface. The image, taken from NASA's DC-8 on Nov. 4, 2012, also shows snow bei

Antarctic ice rift growing

With its protective sea ice barrier melted away, Antarctica's Pine Island Glacier grows ever closer to finally dropping its New York City-sized iceberg into the ocean, according to NASA.