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

A fossilized vulture feather reveals how volcanic ash can turn fragile tissues into stone with astonishing detail.

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 ...

Far below the postcard beaches and turquoise shallows of Bermuda, scientists have mapped a colossal slab of rock that should ...

Scientists have identified 37 volcanic structures on Venus that appear to be recently active — and probably still are today — painting the picture of a geologically dynamic planet and not a dormant ...

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 ...

WASHINGTON – Scientists have identified 37 volcanic structures on Venus that appear to be recently active – and probably still are today – painting the picture of a geologically dynamic planet and not ...

Fig. 3. Lunar volcanic landforms. (A) Floor-fractured crater (44.3°E, 46.5°N), LRO WAC mosaic. (B) Lava flows in the southwestern Imbrium (330.4°E, 25.5°N), Apollo photograph AS15-M-1701. (C) Sinuous ...

About a million years ago, an asteroid smacked into the normally tranquil surface of Mars. The impact released a fountain of debris, and some of the rocky fragments pierced the sky, escaping the ...