Mexico’s Popocatépetl volcano has long drawn attention for its size, constant activity, and glowing plumes of smoke and ash, ...

A Russian volcano that once blew itself apart in a massive explosion is now rising from the ashes—faster than scientists expected. Decades of hidden activity have reshaped its entire structure, ...

New data is used to map a volcano-like feature discovered this fall by science teams aboard the U.S. Coast Guard Cutter Healy, a polar-class icebreaker used for Arctic research. The scientists found ...

Scientists working alongside the U.S. Coast Guard have discovered a 1,640-foot-tall (500 meters) structure that looks like an underwater volcano off the coast of Alaska. The structure may be spewing ...

The volcano-like structure sits more than 1,600 meters from the water's surface. Scientists working on a research ship in the Arctic Ocean may have discovered a giant underwater volcano. According to ...