The Sahara is very likely the world's largest ... images document a dramatic climate change across North Africa from the hyperarid desert it is today to a nearly completely vegetated landscape ...

North Africa is home to the greatest desert on Earth, the Sahara. This vast wilderness, the size of the United States, is the toughest part of the African continent – the sun rules mercilessly here.

North Africa is home to the greatest desert on Earth, the Sahara. This vast wilderness, the size of the United States, is the toughest part of the African continent – the sun rules mercilessly here.

A man running the length of Africa is eyeing the most difficult part of the challenge - crossing the Sahara Desert. Russell Cook, from Worthing, West Sussex, had originally planned to complete 360 ...

A swamp in the world's newest country is bigger than European countries such as Croatia, Denmark, Belgium and the Netherlands ...

Africa's Sahara Desert may be considered a vast expanse of barren sand with limited vegetation, an extreme environment for plants and animals to thrive, but life always finds a way. Indeed ...

Sahara Desert into a vast savannah, where both people and animals lived in great numbers. Today we still know very little ...

This 2013 astronaut photo shows a giant eye-shaped impact crater in the Sahara Desert that is slowly being circled by ...

V iewed from space, the western edge of the Sahara Desert looks like another world. Its abundance of red-tinged sand turns ...