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As a result of the collision, blocks of ice slide above and below each other in a pattern that resembles a zipper or interlocking fingers.
Published Nov 22, 2017
New elevation measurements will give researchers an unprecedented understanding of the thickness of sea ice, which will be used to help improve climate modeling and forecasts.
Published Dec 18, 2018
Filaments of sea ice stretch across the waters off southern Greenland, an area that is typically ice-free.
Published May 18, 2019
Taken from a low-flying airplane on March 26, 2011, these detailed photos of Arctic sea ice show the richly varied texture in the ice floe.
Published Apr 1, 2011
In 1984, there were 1.86 million square kilometers of old ice spread across the Arctic at its yearly minimum extent. In September 2016, there were only 110,000 square kilometers of old ice left.
Published Nov 4, 2016
NASA aircraft return to the Arctic to assess the health of the region’s ice.
Published May 3, 2012
A mixture of ice types exists where frozen water meets open water.
Published Mar 11, 2015
Thin sea ice swirled along the east coast of Greenland in October 2012, against a backdrop of overall thinning sea ice.
Published Oct 27, 2012
Thick ice that used to last through multiple summers has been in steep decline for three decades.
Published Mar 1, 2012
The structure that prevents sea ice from exiting the Arctic Ocean through the Nares Strait crumbled months earlier than usual.
Published Jun 26, 2019
These images show overall Arctic sea ice extent on September 19, 2010 (the date of the 2010 minimum), and sea ice growth in mid-September 2010.
Published Oct 6, 2010
In September 2011, the extent of sea ice covering the Arctic Ocean declined to the second-lowest extent on record.
Published Oct 5, 2011
