Yellowstone has erupted three times in the past 2.1 million years, and each event buried large portions of North America ...

Olympus Mons, a shield volcano on Mars, is the largest volcano in the solar system, measuring approximately 370 miles in diameter and 26 kilometers in height. The formation of Olympus Mons and three ...

Now researchers say one of the most important lithium discoveries on Earth may be hiding in plain sight. Beneath remote desert hills along the Nevada and Oregon border, a long-dead volcano may contain ...

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.