Explore how North America is changing as its deep cratonic root thins and pieces are dripping into the Earth's mantle.

Researchers have discovered that the North American continent is slowly losing rock from its underside in a process called ...

Seismic mapping of North America has revealed that an ancient slab of crust buried beneath the Midwest is causing the crust ...

Sen. Chris Coons, D-Del., declared on CNN Monday that the average middle American probably has no idea where Greenland is on ...