The Inuit tell stories about the year that summer never arrived. Tree rings from 1783 confirm that the Laki volcano in Iceland caused the cooldown.

New research clears up a longstanding question about explosive volcanic eruptions like the ones at Mount St. Helens in 1980.

Steamboat Geyser reawakened in 2018 after three and a half years of dormancy. Does that foretell an eruption in Yellowstone National Park?

Mass extinction of land animals happen on a 27-million-year cycle, researchers report. The timeline matches periodic asteroid impacts and volcano eruptions.

The atmosphere on Jupiter's moon Io is a witches' brew made from the sulfurous burps of more than 400 volcanoes. Now scientists know how it got that way.

Some of the oldest terrain on Venus, known as tesserae, hint at past volcanic activity. Is that what made the planet the "hellish" place it is today?

Exploding volcanoes, not an extraterrestrial impact, probably caused the Earth to suddenly cool about 13,000 years ago, researchers say.

"This quiet period is the longest and most prominent global anthropogenic seismic noise reduction on record."

A beetle that can handle the heat near volcanoes in the summertime inspired researchers to create a cooling material that doesn't use power.

A massive volcanic eruption on the other side of the planet may have created conditions that led to the rise of the Roman Empire, researchers say.