Devils Tower in Wyoming is surrounded by myths and mysteries. To the Sioux people, this site was sacred and some of their stories tell how this mountain formed: A long time ago a giant bear chased a ...
Stunning concentric rings in Libya's Sahara Desert, Jabal Arkanū, were formed by ancient volcanic activity and millions of years of erosion, not meteorite impacts. Captured from the International ...
The Eye of Sahara, or Richat Structure, is a remarkable 40-kilometer geological dome in the Mauritanian desert, clearly visible from space. It was formed by a subsurface igneous intrusion during the ...
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