North America is dripping—with sizable blobs of rock sinking from the underside of the continent, beneath the U.S. Midwest, ...

Even the oldest and most stable of lithospheric structures can’t withstand geologic machinations deep within the Earth.

Beneath the surface of the United States, the Earth's crust is slowly sinking, leading to the emergence of a new geological ...

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

It’s impossible for the Smithsonian to truthfully tell the American story without mentioning racism, sexism and other forms ...