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Clues for a Martian Landscape
Published April 29, 2014
Canyons on Mars show a striking similarity to a handful of canyons on Earth. Could they have had the same type of watery origin?
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Arkansas River Meanders
Published April 21, 2014
Near the city of Little Rock, the river has meandered for decades, leaving its marks across the landscape.
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Bowknot Bend
Published March 17, 2014
The Green River in eastern Utah once carved soft sediment into meanders on a floodplain. Then the land and mountains rose and the river dug deep, preserving those meanders in stone.
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View of the Great Salt Lake from Skylab
Published May 14, 2013
America's first space station was launched forty years ago. Astronauts on Skylab conducted some the first comprehensive visual studies of Earth’s surface.
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