Earth's Surface and Interior
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The circular geologic feature in northwestern Africa can be hard to recognize from the ground, but it is obvious when…
After the Laurentide Ice Sheet retreated from present-day Hudson Bay, rebounding land has revealed striking nearshore topography.
An early autumn storm left higher elevations in southern Argentina with a fresh and fleeting coat of white.
A massive, old caldera and more recently formed craters shape the landscape in the eastern Sierra Nevada.
Scientists pioneered a new system that combines data from multiple Earth-observing satellites to identify forest clearing up to 100 days…
Ireland is best known for its many greens, but the striking grays of the island's Burren region also stand out…
Set amid El Salvador’s modern, active volcanic landscape, tranquil blue waters fill a caldera formed by ancient eruptions.
Oklahoma’s Salt Plains National Wildlife Refuge attracts rare and diverse species—and enthusiasts looking for a distinct type of crystallized gypsum.
The hill-shaped features are a sign of explosive volcanic activity—a rarity on the Red Planet.
