The Eye of the Sahara: The Richat Structure
Astronauts love gazing at the Eye of the Sahara from space, where it resembles a 40 km-wide flying saucer landing site. In reality, it’s just the remains of a dome that’s taken 100 million years to erode. This circular feature in the Sahara Desert of Mauritania, with a diameter of almost 30 miles, has caught…
