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 ...

An active mid-ocean volcano has popped above the water's surface after four years of activity.

A brutal Arctic blast has turned parts of the Eastern United States into a deep freeze, and along at least one frozen shoreline the cold has sculpted something that looks straight out of science ...

Following a massive cryovolcanic eruption, the mysterious Comet 29P/Schwassmann-Wachmann has been morphed into a giant spiral ...

For most of deep time, spreading ridges released more carbon than volcano chains, changing how we interpret Earth’s climate history.

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 ...

The recent earthquake swarm near Santorini has brought the topic of volcanoes in Greece back into the spotlight.

Gold Rush Season 16 Episode 15 explores how gold moves from volcanic origins through glaciers and rivers to modern mining ...

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 ...

A vast underground tunnel known as a lava tube, formed from ancient volcanic activity, was recently discovered lurking beneath Venus.

A unique phenomenon appeared in an Upstate New York park as frigid temperatures consumed the Northern Tier of the U.S. and ...

UNIVERSITY PARK, Pa. — For people living near volcanoes, danger goes well beyond lava flows and clouds of ash. Some explosive eruptions can lead to dramatic collapses of the sides of a volcano, like ...