Three flat-topped hills rising between 1,000 and 1,300 feet above the desert floor in southern Mauritania caught an astronaut ...

Add Yahoo as a preferred source to see more of our stories on Google. (CNN) — Striking images from the Sahara Desert show large lakes etched into rolling sand dunes after one of the most arid, barren ...

A recent study has found an unexpected benefit from the undisputed king of the renewable energy sector as solar panels are ...

Between roughly 11,000 and 5,000 years ago, the Sahara was not the barren sand sea that dominates modern maps. It was a green, rain-fed expanse crossed by rivers and studded with lakes large enough to ...

The fascinating but little-known history of how the Sahara was transformed from a pleasant green and fertile land into the largest hot desert in the world. Green Sahara. (Collage by Kuat Abeshev.

You’ll find a lot more sand than trees in the Sahara Desert, but that doesn’t mean they don’t occasionally crop up. Here’s the story of the Tree of Ténéré, as well as a couple other famous trees found ...

Petroglyphs on sandstone at a national park in Chad bear witness to wildlife that once roamed the area before the continent’s water largely receded 6,000 years ago. Could it return? The Ennedi Natural ...

Photos: Simon Hughes/The Athletic, Getty Images; design: Dan Goldfarb Ali Radjel’s teeth are stained yellow and brown but he does not mind showing them because it gives him an opportunity to talk ...