Guelb er Richat (aka the Richat Structure or the Eye of the Sahara) is eyepopping when seen from space. How is it to see it from the ground? You'll have to travel deep into Mauritania's desert to ...

From an altitude of 255 miles, an Expedition 59 crewmember photographed the Richat Structure, or the “Eye of the Sahara,” in northwestern Mauritania. The circular geologic feature is thought ...

Scientists still have questions about the Eye of the Sahara, but two Canadian geologists have a working theory about its origins.

GOOGLE MAPS reveals the Richat Structure - also known as the Eye of the Sahara - but its origin remains a mystery even today.

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.

This 2013 astronaut photo shows a giant eye-shaped impact crater in the Sahara Desert that is slowly being circled by migrating sand dunes, helping researchers track how far these dunes can move ...

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 ...

“Dubbed ‘the Eye of Sahara’ for its rings, the diameter of the structure spans about 25 miles,” the Goddard Space Flight Center wrote.