Planet Earth

Explainer Experts have warned that an underground magma tunnel between a pair of Icelandic towns could erupt at any moment. But what will this eruption look like? And how far-reaching will its effects be?

Iceland's volcanic activity is generally tame compared with explosive eruptions along the Pacific's Ring of Fire. This time, it's shaking up a town.

Four huge deposits from supervolcano eruptions over the last 40,000 years have been discovered at the bottom of the Mediterranean Sea.

Iceland's Reykjanes Peninsula is now in a new era of volcanic eruptions that will last for up to 500 years, and the building magma beneath Sundhnúkur and Grindavík is part of this millenia-long cycle.

Russia's Klyuchevskoy volcano, which is the tallest volcano in Europe and Asia, violently erupted on Nov. 1 and left behind a trail of smoke and ash that was photographed by NASA satellites.

Opinion Opinion: State-of-the-art climate models show warming stops once we stop emitting carbon. That means there's still time to stop the worst impacts of climate change.

Authorities in Iceland have warned that a volcanic eruption is imminent, with the town of Grindavík, close to the country's famous Blue Lagoon resort, evacuated.

Climate change is raising sea levels, and many low-lying islands are at risk. But determining which communities will be first to leave is impossible to answer.

Mountains form in a variety of ways, some of which geologists are now just starting to understand.

A newly-formed island off the coast of Iwo Jima in the Pacific Ocean was spotted in satellite images after it emerged during an underwater volcanic eruption at the end of October.