A new study reconstructing the Arabian Peninsula’s ancient past adds clues to how early humans left the African continent.

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

Mineral deposits in limestone caves show that the now arid interior of Saudi Arabia repeatedly experienced increased rainfall ...

Long before the Arabian Desert became an arid expanse, it was a fertile crossroads for early humans making their way out of Africa. Along the way, they left behind some of the oldest tools ever ...

The Arabian Desert, known today as one of the driest places on Earth, was once full of lakes, rivers, and green landscapes.