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 ...

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, ...

The deep structure of volcanoes has proven difficult for geoscientists to understand due to the inherent difficulty of seeing below the Earth’s surface. To get a more holistic understanding of ...

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 ...

It is one of several discoveries named after "The Lord of the Rings." When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Researchers exploring the ...

Olympus Mons, a shield volcano on Mars, is the largest volcano in the solar system, measuring approximately 370 miles in diameter and 26 kilometers in height. The formation of Olympus Mons and three ...

There are a number of “biggest” features that can be found on Mars. Some are the biggest in the solar system, like the Valles Marineris, the longest and deepest canyon we know of, or the Hellas ...

HONOLULU (KHON2) — Fire officials on Hawaii Island are investigating the cause of a structure fire that started around 5 p.m. on Tuesday, April 6, and caused the collapse of a wooden structure in the ...