Ash clouds are made of tiny particles that were lofted into the atmosphere from a volcanic eruption and can have a huge impact, even thousands of miles from the eruption.

To study Mars’s chemical and mineral makeup, the Curiosity rover drills one to 1.5 inches down into the subsurface, then ...

Billions of years ago, Mars was warmer and wetter than today, perhaps because volcanoes belched enough carbon dioxide to ...

When a large volcano erupts, as Mount Spurr appears close to doing about 80 miles from Anchorage, Alaska, it can ...

When volcanoes like Alaska’s Mount Spurr erupt, the ash can damage people’s lungs, smother crops and kill animals, and the ...

The documentary highlighted that such an eruption could instantly claim the lives of up to 90,000 people. The destruction ...

Scientists have found previously undocumented ash deposits buried beneath the Lava Creek Tuff in Wyoming — and at least one ...

Despite the catastrophic potential, the likelihood of a Yellowstone supereruption remains very low. The United States ...

When volcanic eruptions make headlines, the images often depict fiery lava and towering ash clouds. But beneath Antarctica’s ...

A volcano there could erupt soon, and that might send ash into the sky and damage eyes, lungs and skin. Nat Herz reports. ALLIANA SALANGUIT: Iroh. Sponsor Message JESSLIN WOOLIVER: OK, come on.

A volcano there could erupt soon, and that might send ash into the sky and damage eyes, lungs and skin. Nat Herz reports. ALLIANA SALANGUIT: Iroh. JESSLIN WOOLIVER: OK, come on. SALANGUIT: Iroh, come.

When Hunga Tonga–Hunga Haʻapai, an underwater volcano near ... the top of the atmosphere and near the tropopause, the boundary separating the troposphere (the lowest layer of Earth's atmosphere ...