A scientist who led one of the first projects to map the Hawaiian Islands’ deep volcanic plumbing explains what’s going on under the surface as Mauna Loa erupts.

Scientists detect fast-moving plate tectonics and flipped magnetic poles on early Earth.

Iceland's Fagradalsfjall volcano began erupting August 3. An expert explains what makes the country a "double whammy" for volcanic activity.

Harvard-led researchers detect some of the earliest evidence for modern-like plate motion.

Force generated by the pull of the sun on the moon, rather than heat, may be responsible for the movement of the Earth's tectonic plates, researchers argue.

New results "suggest that Earth, like the other rocky planets Mercury and Mars, is cooling and becoming inactive much faster than expected."

Why we are predicting the mountains of the far future, and what it can tell us about the world today.

"Eggshell planets" have an ultra-thin outer brittle layer and probably no plate tectonics. That raises questions about their habitability.

History of Science Professor Naomi Oreskes examines the power of funding to shape science, for both better and worse, in her latest book, “Science on a Mission: How Military Funding Shaped What We Do and Don’t Know about the Ocean.”

"If you send a spacecraft to the surface of Venus, which has been done several times, they only last a few minutes until the hot acid burns them up."