Isotope analysis of limestone cave deposits indicates repeated humid periods in the Saharo-Arabian Desert over the past eight ...

SUPERSTITION MOUNTAINS, Ariz. — Spring in Arizona is prime time for hiking — before the summer sun kicks into full blast. And if you're looking to squeeze in one more scenic adventure, the Wave Cave ...

The discovery of Green Arabia not only reshapes our understanding of ancient climates but may also solve one of humanity’s greatest mysteries.