Kenneth Sims and other research scientists recently discovered that mafic volcanism of Henrys Fork Caldera -- located in ...

Yellowstone's supervolcano appears to have a magma cap that vents pressure and reduces the chances of a massive eruption happening anytime soon.

Recent flybys of the fiery world refute a leading theory of its inner structure — and reveal how little is understood about ...

The Reykjanes Peninsula at Iceland's southwestern edge is one of the country's most populated regions, and it is also one of ...

Strangest of all, scientists have found that its gusts of gas are loaded with tiny crystals of metallic gold, no larger than 20 micrometers. Over the course of a single day, it's estimated that the ...