Add Yahoo as a preferred source to see more of our stories on Google. Image of active volcano shows magma pressure inside volcanoes can destabilize slopes and trigger collapse. (CREDIT: YouTube / CC ...

A massive, iron-rich structure sitting at the base of Earth’s mantle beneath the Hawaiian Islands may be doing more than scientists previously understood to fuel the archipelago’s volcanic activity.

Researchers have identified 138 candidate subglacial volcanoes hidden beneath the West Antarctic Ice Sheet, 91 of which had never been recognized before, raising serious questions about what happens ...