Richat structure, Mauritania | Desert bullseye

A giant, geological wonder in the Sahara Desert of Mauritania is pictured in this satellite image. Source: Related news: Earth’s Richat Structure What on Earth is that? The Richat Structure in the Sahara Desert of Mauritania is easily visible from space because it is nearly 50 kilometers across. Once thought to be an impact crater, the Richat Structure’s flat middle and lack of shock-altered rock indicates otherwise. The possibili