Fluid inclusions in volcanoes are dominantly composed of carbon dioxide. At magmatic temperatures — 2,192 degrees — the density of the carbon dioxide strongly depends on pressure, which is influenced ...

ONE of the world’s most dangerous volcanoes is showing unsettling new signs of activity. Scientists from the National ...

Add Yahoo as a preferred source to see more of our stories on Google. Image of active volcano shows magma pressure inside volcanoes can destabilize slopes and trigger collapse. (CREDIT: YouTube / CC ...

Volcanoes don’t always show their activity through huge explosions or lava rivers. In many cases, the changes are quiet and ...

Scientists in Mexico documented a number of changes inside El Chichón during monitoring between June and December 2025.

POPOCATÉPETL VOLCANO, Mexico (AP) — In the predawn darkness, a team of scientists climbs the slope of Mexico’s Popocatépetl volcano, one of the world’s most active and whose eruption could affect ...

Kīlauea volcano in Hawaiʻi Island erupted dramatically, sending lava fountains reaching 1,300 feet high. This event marked ...

Due to a weird quirk of geology, New Mexico's Bandera Volcano Ice Cave never warms above 31 degrees Fahrenheit, even when ...

Volcanoes erupt because hot, melted rock from deep inside the Earth finds a way to reach the surface. This melted rock is ...

Learn how a young volcano on Mars stayed active for nine million years and what its changing lava reveals about Mars’ interior.

When referred to as a gas, it means a volatile has transitioned into the vapor phase. The most common gases (or vapor phase volatiles) emitted at the surface are water (H2O), carbon dioxide (CO2), and ...