Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Today, the view ...

This week, discover the Sahara’s greener past, explore a mysterious cosmological force, marvel at a new concept for space ...

She reports on justice and human rights issues. Contact her at [email protected] The Sahara desert, once lush and green, during a time between 14,500 and 5,000 years ago ...

April 4 (Reuters) - The Sahara Desert is one of Earth's most arid and desolate places, stretching across a swathe of North Africa that spans parts of 11 countries and covers an area comparable to ...

Picture the Sahara, and an inhospitable landscape of endless sand dunes and barren rock comes to mind. That’s largely the case today, but 7,000 years ago the vast desert was an altogether ...

A view from the Takarkori rock shelter in southwestern Libya ...

The Sahara Desert is one of Earth’s most arid and desolate places, stretching across a swathe of North Africa that spans parts of 11 countries and covers an area comparable to China or the United ...

Find Egypt Desert Oasis Sand Dune stock video, 4K footage, and other HD footage from iStock. Get higher quality Egypt Desert Oasis Sand Dune content, for less—All of our 4K video clips are the same ...