This story appears in the October 2009 issue of National Geographic magazine. An ancient wind is coming up from a place called deep time. The Sahara strikes us as an eternal inferno of dunes and ...

New research reveals that only the most intense Atlantic-sourced storms are responsible for filling a normally dry lake in ...

(CNN) — Striking images from the Sahara Desert show large lakes etched into rolling sand dunes after one of the most arid, barren places in the world was hit with its first floods in decades.

With this amount of sand coverage, there’s still plenty of opportunity for the formation of vast dune seas, known as ergs.

The Sahara Desert, located in West Africa, is the largest hot desert in the world. While deserts are traditionally characterized by a dry climate with low levels of vegetation, the Sahara has been ...