The Sahara is a desert on the African continent. With an area of 9,200,000 square kilometres, it is the largest hot desert in the world and the third-largest desert overall, smaller only than the deserts of Antarctica and the northern Arctic. The name "Sahara" is derived from the Arabic word for "desert" in the feminine irregular form, the singular ṣaḥra', plural ṣaḥārā, ṣaḥār, ṣaḥrāwāt, ṣaḥāriy. The desert comprises much of North Africa, excluding the fertile region on the Mediterranean Sea coast, the Atlas Mountains of the Maghreb, and the Nile Valley in Egypt and the Sudan. It stretches from the Red Sea in the east and the Mediterranean in the north to the Atlantic Ocean in the west, where the landscape gradually changes from desert to coastal plains. To the south it is bounded by the Sahel, a belt of semi-arid tropical savanna around the Niger River valley and the Sudan region of sub-Saharan Africa.

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The Wild Plan to Export Sun From the Sahara to the UK

NASA satellite captures Sahara Desert dust plume over the Atlantic Ocean

Plesiosaur fossils found in the Sahara suggest they weren't just marine animals

Bizarre meat-eating dinosaur joins 'Rogues' Gallery' of giant predators from classic fossil site in Egypt's Sahara Desert

The Sahara: Earth's largest hot desert

Did the era of giant impacts end early on Mars? New evidence from meteorite found in Western Sahara suggests otherwise

The “Green Sahara” Left Behind Fossil Rivers

A Plan to Slow the Creep of the Sahara—by Planting Gardens

Butterflies Cross the Vast Sahara Desert in Longest-Known Insect Migration

Butterflies regularly cross the Sahara in longest-known insect migration

Butterflies cross the Sahara in longest-known insect migration

Using fossil plant molecules to track down the Green Sahara

Buried Traces of Ancient Man Dating Back Million Years Found in Sahara Gold Mine

Cuckoo bird has crossed the Sahara 10 times in 5 years

Scientists Discover Chunk of Protoplanet Older Than Earth In Sahara Desert: No other known object has characteristics similar to EC 002, an ancient meteorite found in an Algerian dune sea last year

Solar panels in Sahara could boost renewable energy but damage the global climate – here's why

Vast Portions of Today’s Sahara Desert Were Green Thousands of Years Ago

Past river activity in northern Africa reveals multiple Sahara greenings

Past river activity in northern Africa reveals multiple Sahara greenings