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

Beneath the American Midwest, on the continent of North America, the underside of Earth's crust is dripping into the ...

Along the northwestern coast of North America, a curling crack in Earth’s crust tells the story of cataclysmic tectonic activity that ripped through the region millions of years ago. Due to this ...