Volcanoes erupt because hot, melted rock from deep inside the Earth finds a way to reach the surface. This melted rock is called magma, and it forms when parts of the Earth’s mantle become so hot that ...

Volcanoes erupt because hot, melted rock from deep inside the Earth finds a way to reach the surface. This melted rock is called magma, and it forms when parts of the Earth’s mantle become so hot that ...

Social media videos showed people running into the streets as bright orange flames and smoke spewed into the sky.

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 ...

Taftan volcano in southeastern Iran rose 3.5 inches over 10 months, signaling that it is waking up after 700,000 years of dormancy.

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 ...

Kilauea entered a dramatic new eruptive phase inside Hawaii Volcanoes National Park, sending lava high into the air and ...

Kilauea volcano in Hawaii begins Episode 42 of its summit eruption, with lava fountains confined to Halemaumau crater in Hawaii Volcanoes National Park ...

Volcanologists may soon get a lending paw from a helpful robot called "Anymal." The dog-like machine uses its four legs to walk through uneven terrain – giving it a "leg up" on wheeled vehicles.

Bright orange lava danced against the dark sky as a massive gas-and-ash plume climbed to 35,000 feet.

Step into an underground lava cave hike in Arizona, where cool air, dark tunnels, and rugged volcanic walls turn a simple walk into a bucket list adventure.

Now, that volcano-fueled set is headed to Denver. Comedian Ben Miller brings his Volcano Show to the Denver Museum of Nature & Science on April 24 at 7 p.m. Expect lava-level heat, eruption-worthy ...