Once reserved for mountain towns, iron-rung climbing courses called via ferratas are showing up in places like Columbus, Ohio. Here’s where else to try one.

Researchers reveal a dynamic geologic past for Antarctica’s Transantarctic Mountains, uncovering ancient mountain-building ...

Mount Etna’s craters continue to smoulder two days after its largest eruption in four years sent tourists fleeing from a vast column of gas and ash on Monday. At such a critical moment in US history, ...

Mount Etna has again captivated the world with a spectacular show. The volcano that towers over eastern Sicily spewing smoke ...