"...an evolution of the mantle of the Earth could control an evolution of the atmosphere of the Earth, and possibly an evolution of life."

Earth's underground network of tectonic plates was in place more than 4 billion years ago—about a billion years earlier than scientists had thought.

201 million year ago, climate change wiped out nearly half of the species on Earth. New research shows volcanic CO2 emissions played a direct role.

Though it's been hotly debated for decades, tree rings may pin down the year the Thera volcano erupted over the Minoan civilization.

Volcanoes had nothing to do with K-Pg, the mass extinction event in which dinosaurs perished, researchers say. That was all an asteroid's doing.

"It's sort of a bizarre thing to think about. You have crystals within the outer core snowing down onto the inner core..."

Volcanic activity on Mercury, or a lack of it, could help us find other Earth-like planets, researchers say.

New research indicates climate warming and mercury contamination at the time of the Deccan Traps volcanism.

A new theory involving volcanoes may partly explain the appearance of the first oxygen on Earth 2.5 billion years ago, researchers say.

The density of the metallic asteroid Psyche has mystified scientists, but a new theory points to molton iron as an explanation.