Beneath America, something ancient and invisible is at work. Deep under the heart of the Midwest, a long-buried slab of Earth ...

Continental and oceanic plates all fit together to form the outer crust of the planet. Eight major plates are named on the diagram below. Heat from the core makes magma in the mantle rise towards ...

This week, researchers reported on nine rivers and lakes in the Americas that defy hydrologic expectations. Geologists report ...

Beneath the American Midwest, part of the continent is gradually losing its foundation. This slow geological phenomenon, invisible on the surface, puzzles scientists. An international team ...