Start Date: End Date: Published Date Data Date
Nicholson Crater, Canada
2000 x 2000 11 MB - GeoTIFF
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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Pine Island Glacier, Antarctica
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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
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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
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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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Nyamuragira and Nyiragongo
Published December 10, 2007
In central Africa, in the Democratic Republic of the Congo, sit two volcanoes: Nyiragongo and Nyamuragira. Besides their proximity to Lake Kivu in the south, these volcanoes share the capacity for destruction, each having produced its share of catastrophic eruptions since the early twentieth century. Yet these volcanoes differ markedly from each other, one being a low-profiled structure rising subtly from the plain, and the other sporting steep slopes.
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