2011-11-03 17:32:56

A photo from the window of NASA's DC-8 shows the rift across the Pine Island Glacier ice shelf running off toward the horizon. The plane flew across the crevasse on Oct. 26, 2011 as part of NASA's Operation IceBridge, and also flew directly over the rift for about 18 miles, taking detailed measurements of its depth, width and shape. The ice shelf hasn't calved a major iceberg since 2001, and IceBridge took advantage of the opportunity afforded by spotting the crack to fly over it and measure its