A switch from predominantly undersea volcanoes to a mix of undersea and terrestrial ones shifted the Earth’s atmosphere from devoid of oxygen to one with free oxygen, according to geologists. “The ...

Mount Shasta, a steep-sided Cascade Range stratovolcano in Northern California, looms above Little Glass Mountain, a thick obsidian flow erupted from the Medicine Lake shield volcano about 1,000 years ...

Chaitén Volcano in southern Chile erupted on May 2, 2008 for the first time inn 9,000 years. NASA satellites that monitor changes in vegetation near volcanoes could aid in earlier eruption warnings.

Although volcanic eruptions may seem like a distant worry for many of us, about 10 percent of the world's population lives within striking distance of a volcano. This includes those living in the U.S.

New Cornell University led-research challenges the long-standing belief that active volcanoes have large magma bodies that are expelled during eruptions and then dissipate over time as the volcanoes ...

A dormant volcano in Ethiopia erupted after 10,000 years of silence. This event shows how the world's little-known volcanoes ...

An early morning frost has been discovered for the first time atop the tallest volcanoes in the solar system, found near Mars' equator, changing what planetary scientists thought they knew about Mars' ...

This photo provided by the Indonesian National Search and Rescue Agency (BASARNAS) shows a view of an eruption of Mount Ruang in the Sulawesi island, Indonesia, Friday, April 19, 2024. More people ...

When the underwater Hunga Tonga volcano erupted in the South Pacific, it blasted an "unprecedented" amount of aerosols and water vapor into Earth's atmosphere. Now, scientists are saying the plume was ...