The rings rise around 330 feet (100 m) above the surrounding ... impact crater in the Sahara Desert. The oculus-like ...

But there was one I hadn’t realized I’d need to survive the Sahara: reading sand dunes ... to photograph from above. But first I had to reach the dunes. I traveled to the region with France ...

When you think of towering sand dunes, your mind probably drifts to the Sahara or perhaps ... a 470-foot sand peak rises dramatically above the desert floor, offering an extraordinary adventure ...

Ralph Bagnold, a Cambridge-educated engineer in the British Army, explored the Sinai and Sahara on leave before drafting his 1941 masterwork The Physics of Blown Sand and Desert Dunes, which is ...

The belt the company named “The Dune Express ... from a mine in Western Sahara on the northwest coast of Africa, according to NASA Earth Observatory. When moving sand by truck became a ...