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 ...

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 ...

Scientists analyzing decades-old NASA's Magellan data have identified only the second reported lava tube on Venus.

More than a million giant skate eggs are discovered incubating in the heat of an underwater Pacific Ocean volcano.

Bandera Volcano Ice Cave near Grants offers a frozen escape in the desert, with ice layers up to 20 feet thick—perfect for a ...