This article originally published at Not far from I-40, a Calif. desert hike 18 million years in the making. Save up to 75% ...

In Italy, a super volcano outside of Naples is stirring in a way it hasn't for centuries. And hundreds of thousands of people live right by it.

Just a half-hour drive away from the southern Italian town of Naples, Campi Flegrei, dubbed the “burning fields,” is home to ...

Volcanic eruptions at Earth’s surface have significant consequences. Smaller ones can scare tourists on Mount Etna or disrupt air traffic. Giant, large-scale eruptions can have more serious impacts.

LEMBATA – Indonesia's Mount Lewotobi Laki Laki erupted with giant ash and smoke plumes again Wednesday after forcing evacuations of villages and flight cancelations, including to and from the resort ...

A NASA orbiter has captured a stunning image of a giant volcano on Mars. The panorama, captured on May 2 by NASA’s Mars Odyssey orbiter, shows Arsia Mons, one of the largest volcanos on the Red Planet ...

This stunning astronaut photo shows the natural beauty of Japan's Aso Caldera — a giant crater-like bowl containing 17 different volcanoes, leftover from major eruptions spanning over 200,000 years.

The discoveries challenge the popular image of Yellowstone as a ticking time bomb with a single massive underground pool of molten rock.