Estimates of the Eye of the Sahara's dimensions range from 25 to 31 miles (40 to 50 kilometers) in diameter. The eye forms a near-perfect circle in the desert of Mauritania, which initially led ...

As dusk fell on the edge of Nouakchott, Kayo the husky left a trail of paw prints in the warm Sahara sand, an incongruous yet increasingly familiar sight in Mauritania.

While Mauritania has no museum to house its meteorites, and no proper marketplace for them, Navee agreed his nation has one clear advantage: “Nomads are the best collectors in the world,” he said.