Ecowatch - The Pine Island Glacier, the fastest-retreating glacier in Antarctica, lost another massive chunk of ice earlier this week.
A 115-square-mile section calved off the ice shelf on Oct. 29. That's roughly the five times the size of Manhattan.
The piece was expected to take weeks or months to break off after the first cracks were observed about a month ago, according to Stef Lhermitte, an assistant professor in the Department of Geoscience and Remote Sensing at Delft University of Technology in the Netherlands.
But "I was a bit surprised" it broke off that quickly, he told Live Science. "It turned out to be on the quick side."
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