Discover seven unforgettable Alaska views that are easy to reach via overlooks, short walks, scenic drives, or flightseeing ...

America’s deadliest volcano has just rattled through more than 1,000 tiny earthquakes in a matter of days, a drumbeat of ...

If the theory is proven correct, the consequences could be enormous, spelling a much more risky, explosive future.

At life's extremes it can seem easy. Is it possible to take a bad picture near the top of Mount Everest, or miles above Earth ...

Glaciers around the world are disappearing, and new research shows that this loss will speed up sharply in the coming decades ...

A dormant volcano in Ethiopia erupted after 10,000 years of silence. This event shows how the world's little-known volcanoes ...