A controversial new study suggests our geography textbooks should be rewritten. Since we were young, we’ve learned that Africa, Antarctica, Asia, Oceania, Europe, North America and South America make ...

North America's "broken heart" is an ancient rift valley in the Midwestern United States. The rifting began roughly 1.1 billion years ago due to tectonic forces pulling what is now the North American ...

Hämäläinen is Rhodes Professor of American History at Oxford University. His new book is Indigenous Continent: The Epic Contest for North America. He is also the author of The Comanche Empire, winner ...

An ancient slab of Earth's crust buried deep beneath the Midwest is sucking huge swatches of present-day's North American crust down into the mantle, researchers say. The slab's pull has created giant ...

North America is dripping—with sizable blobs of rock sinking from the underside of the continent, beneath the U.S. Midwest, into the Earth's mantle below. This is the conclusion of researchers from ...

Indigenous Continent: The Epic Contest for North America, by Pekka Hämäläinen. Liveright. 576 pages. $40. In the 1630s, the powerful Pequot Confederacy of southern New England found itself beset by ...

Ancient horses roamed the North American continent for millions of years. And many, many years later, horses played an integral role in building the foundation of the United States. However, there was ...

Fossilized footprints in White Sands National Park USGS, NPS, Bournemouth University When picking up a tired toddler on a long walk, or hunting and confronting a giant sloth, the humans walking the ...