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

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

Kīlauea volcano on Hawaiʻi Island erupted again, shooting lava as high as 1,300 feet into the air. This eruption was particularly striking, even for a.

S trange things are afoot in Yellowstone National Park.

This is Deception Island — an active volcano that acts like it could erupt at any moment. It spews ash and lava into the surrounding ocean, and steam rises from the shore of its black sand beach. Yet ...

What may look like a single volcanic eruption is usually the visible outcome of far more complicated activity taking place underground. Beneath the surface, magma can migrate, cool, mix, and ...

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 ...

Sometimes, dressing like a budget version of a hazmat technician and swinging a large hammer through a beer bottle is exactly what you need.

The Icelandic Highlands are a hiker's paradise, with trails that lead to some of the most stunning natural wonders on the ...

Valentine Geyser in the Norris Geyser Basin in Yellowstone National Park unexpectedly sprang to life again with 13 documented ...

The eruption pattern is getting more predictable, but other aspects like ashfall, are not.

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 ...