The desert covers over 3.3 million square miles, which means it's roughly the same size as the entire United States.

The vast desert of the Arabian Peninsula was not always an arid landscape. A recent study reveals that this region was once home to a vast lake and river system. These favorable conditions fostered ...

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

One of the world's largest deserts was once home to a vast lake and river system, an international team revealed in research ...

An international team led by researchers from the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany, has ...

Mineral formations in caves reveal recurring periods of humidity in the Arabian Desert over the last 8 million years.

The Empty Quarter, or Rub’ al-Khali in Arabic, is one of the world’s largest deserts. Spanning nearly 650,000 square kilometers—mainly in Saudi Arabia—it dominates the Arabian Peninsula ...