Greenland's Sweaty Summer

By Amelia Hennighausen - 2012-08-06T15:47:15Z

Photograph by Jesse Allen/NASA Earth Observatory

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Breaking Up

The day after the Petermann Glacier calved a 46-square-mile iceberg on July 16, a NASA satellite spied a larger opening between the glacier and the iceberg (center), and the breakup of thinner, downstream ice, according to a release from the space agency. "The floating extension is breaking apart," said Eric Rignot of NASA's Jet Propulsion Laboratory and the University of California-Irvine. "It is not a collapse, but it is certainly a significant event."

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