On some Mars images, Olympus Mons does not look dramatic at first glance. It sits there quietly, a wide pale rise against ...

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 ...

An "unusually large" ice volcano in Iceland could be about to blow after more than 130 earthquakes hit the region in a five-hour period, experts say. The earthquake swarm began in the northwestern ...

Mount Etna erupted on Monday (June 2) with a ginormous cloud of ash and triggered an avalanche of volcanic material that has ripped down the side of Europe's largest active volcano. The massive ...

Rising more than twice the height of Mount Everest, Olympus Mons dominates the landscape of Mars and holds the title of the ...

One of Iceland's largest volcanoes is on the brink of erupting, experts have warned. Bárðarbunga – the second-largest volcano in the country – has been hit with a swarm of 130 earthquakes within just ...

Mount Etna's Voragine crater erupted for the first time in two years. — -- Italian residents were treated with quite the spectacle on Thursday. Fire and lightning lit up the sky over Sicily after ...