Last updated on April 21, 2014 at 7:52 EDT
Greenland ice sheet
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Greenland ice sheet

October 11, 2013
Clouds blur our view of the snow below in parts of this image acquired over the southern tip of Greenland by the Landsat-8 satellite on 30 May 2013. Long fjords reach far inland and, zooming in on the tips of some of their 'fingers', we can see ice streams that drain the Greenland ice sheet. In the lower part of the image, white dots speckle the North Atlantic Ocean, like stars in the night sky. These are icebergs that – although they appear insignificant in this image – pose a major threat to ships. Copyright USGS/ESA