The Richat Structure looks great from above ... An oasis permits locals to grow date-filled palm trees near the ancient ruins. Chinguetti and Ouadane are UNESCO World Heritage Sites because ...

Regarding “The Mother Ship” [March 24]: The article included a picture of the Richat Structure, mislabeled (presumably by the creators of the “One Strange Rock” series) as a meteor crater.

Deep within the vast expanse of the Sahara Desert lies an enormous, circular formation spanning nearly 50 kilometers—an ...

The circular formation in this photo is the Richat Structure of Mauritania, which “has captured the attention of astronauts for about as long as NASA has sent humans into orbit around Earth.” ...

Dutch astronaut Andre Kuipers snapped this hypnotic image of the so-called Richat structure in Mauritania, as the space station flew over the Sahara Desert on the Atlantic Coast of West Africa.

The so-called Richat Structure was captured by an astronaut from 222 miles up on the International Space Station (ISS). Taken on July 17, the pictures detail the 25-mile-wide geological formation ...

The Eye of the Sahara, also known as the Richat structure, stands out like an oversized ammonite among the sand dunes of the Sahara desert in Mauritania. When you purchase through links on our ...

The next time you're flying over Mauritania — or passing above Africa aboard the International Space Station — have a glance out the window and see if you can spot the Richat Structure.

Known as the Richat Structure, the formation is a series of concentric circles that look exactly like a big, round UFO landing pad. “Dubbed ‘the Eye of Sahara’ for its rings, the diameter of ...