NASA keeps watching this giant 'eye' in the Sahara from space but it has a surprising earthly origin

Astronauts marvelled at the Sahara's 'Eye of the Sahara,' the Richat Structure, a geological wonder in Mauritania. Far from a ...
Scenic Relaxation on MSN

Why does this ridge cut through the desert?

This video shows Shiprock, a striking volcanic rock formation rising from a vast desert landscape in the southwestern United ...