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Clues for a Martian Landscape
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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
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Published April 21, 2014
Near the city of Little Rock, the river has meandered for decades, leaving its marks across the landscape.
Bowknot Bend
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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.
View of the Great Salt Lake from Skylab
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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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