Earth's Interior

Ambient noise generated by the planet sheds light on its inner layers.

World's biggest carbon reservoir at center of the Earth, according to new computer model.

When Earth's outer layers wander, its bulge may snap them back into place.

Jet of magma may have fueled volcanism that contributed to dinosaurs' demise.

Computer models and rock records used to track "true polar wander."

The study could help predict earthquakes in the area in the future.

Scientists have wondered why the magnetic and geographic North Poles don't match up.

Super-heated water in Earth's mantle can travel through rock quicker than thought.

Spring's arrival, both beautiful and terrifying, begin our choices this week. Check out what we found.

These dry, rugged mountains once lay below the bottom of the sea.