Two members of the Little Sisters of St. Thérèse of the Child Jesus were among those killed earlier this week by armed gang ...

The Sahara Desert is one of Earth's most arid and desolate places, stretching across a swathe of North Africa that spans ...

The desert that we see today in Arabia was once a region that repeatedly underwent "green" periods in the past, as a result ...

Researchers analyzed the ancient DNA of two mummies from what is now Libya to learn about people who lived in the "Green ...