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What is the risk of a volcano erupting? To answer this question, scientists need information about its underlying internal structure. However, gathering this data can take several years of fieldwork, ...

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 ...

Mexico’s Popocatépetl volcano has long drawn attention for its size, constant activity, and glowing plumes of smoke and ash, yet for decades scientists did not fully understand what was happening deep ...

Volcanoes are among the most powerful forces on Earth. They can release unimaginable amounts of energy, sending rivers of ...

Lava domes form at the top of many volcanoes when viscous lava erupts. When they become unstable, they can collapse and cause a hazard. An international team of researchers has analyzed summit dome ...

A deeply eroded giant volcano, active from ancient through recent times and with possible remnants of glacier ice near its base, had been hiding near Mars' equator in plain sight. Its discovery points ...

Researchers from the National Oceanic and Atmospheric Administration Ship Fairweather and the University of New Hampshire analyze mapping data in the U.S. Coast Guard Cutter Healy’s computer lab while ...