Simushir is part of the Kuril Islands, comprising 50 volcanic islands in the North Pacific Ocean. It stretches for eight ...

One of Mars' tallest volcanoes peeps over a thick layer of clouds, in Odyssey’s first picture of Arsia Mons peering over the ...

The 1980 eruption of Mt. St. Helens — which began with a series ... and steam exploded upward and outward to the north. The outward blast spread volcanic debris (gray in the images) over 230 square ...

The search spanned continents, but no known volcano fits in the picture. Until now. In a stunning revelation, a team of ...