There's more to Peru than Machu Picchu, Cusco and the Nazca Lines. Indeed, the Andean city and region of Arequipa reveal a ...

Discover the best things to do in Redding, California, from unearthing gold rush history to exploring lakes and caverns.

Studying tree rings helped scientists pinpoint when Mount Rainier last sent a lahar down its steep slopes, which could help ...

The La Garita Caldera eruption was one of the three most destructive volcanic events in Earth’s history. It released ten ...

Far below the Pacific, scientists are mapping a hidden record of catastrophe carved into the seabed by ancient Cascadia ...