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

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

But don't worry, the continent isn't about to collapse. These are incredibly slow geological processes, happening over ...

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