Start Date: End Date: Published Date Data Date
Nicholson Crater, Canada
540 x 405 JPEG
Published March 23, 2008
Some 400 million years ago, a meteor struck Earth in what is now Canada’s Northwest Territories. The 12.5-kilometer- (7.8-mile-) wide crater is now Nicholson Lake, one of many small lakes that dot the sub-arctic, glacier-scoured landscape.
Related images:
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Pingualuit Crater, Canada
Published February 10, 2008
Pingualuit Crater holds a lake about 267 meters (876 feet) deep. Because this lake has no connection to any other water body, inflows from other lakes cannot contaminate Pingualuit’s sediments.
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3000 x 3000 18 MB - GeoTIFF
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Pine Island Glacier, Antarctica
540 x 672 JPEG
Published January 11, 2008
The Pine Island Glacier has been the focus of scientific attention for many years. Large numbers of deep crevasses are a sign that parts of the glacier are moving rapidly.
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Island in the Sky, Canyonlands National Park
540 x 540 JPEG
Published January 3, 2008
This park in Utah encompasses some of the most remote and rugged terrain in the continental United States.
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Hobet-21 Mine, West Virginia
4000 x 4000 4 MB - JPEG
Published December 23, 2007
This pair of images shows the growth of a mountaintop removal in the headwaters of Mud River in Boone County, West Virginia, between 1987 and 2002.
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540 x 703 JPEG