The Sahara Desert is the largest hot desert worldwide. Its surface area of 3,600,000 square miles including the Libyan Desert, is comparable to land area of the United States. The Sahara stretches from the Red Sea in the east and the Mediterranean in the north, to the Atlantic Ocean in the west. Its name is derived from the plural Arabic language word for desert.
Many of its sand dunes reach over 600 feet in height. The desert landforms of the Sahara are shaped by wind and include sand dunes and dune fields or sand seas (erg), stone plateaus (hamada), gravel plains (reg), dry valleys (wadi), dry lakes (oued) and salt flats (shatt or chott)
This desert is not emptiness, by far.
It is the home of the Tuareg.