From the ground, the Richat Structure is almost nothing. A traveler crossing the Adrar Plateau of western Mauritania would notice low, curving ridges of quartzite and long valleys of weathered rock, ...
Decoding the Unknown on MSNOpinion
This strange structure in Africa looks too perfect to be natural
The Richat Structure, also known as the Eye of the Sahara, is one of the strangest formations on Earth. From above, its ...
Photo: Richat Impact Structure of Mauritania, As Seen From The International Space Station By Keith Cowing May 24, 2013 Filed under OnOrbit ...
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