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

A high-resolution camera system aboard the Mars Express Orbiter has returned stunning images of “snaking” gashes across the foot of Arsia Mons, one of the red planet’s massive volcanoes. The European ...

Weapons stored in bunkers at Clark Air Base in the central Philippines are "safe and secure" despite the eruption of Mount Pinatubo, a Pentagon spokesman said Thursday. The Guardian newspaper in ...

A volcanic eruption in southwest Iceland began Monday night after weeks of intense seismic activity. This marked the the first time in 50 years that a largely populated area had to be fully evacuated ...

After changing its national currency to Bitcoin and enforcing mandatory acceptance at businesses in September, El Salvador is looking to up the ante by building a “Bitcoin City” at the base of ...

This eye-catching satellite photo shows Simushir, a little-known Russian island and former Soviet naval base, featuring four end-to-end volcanoes that are evenly spaced and in a surprisingly straight ...