The landmass called North America is actually pretty young, becoming something close to its current incarnation less than 200 million years ago. Before then, the continent was called Laurentia on its ...

Scientists have compiled the most comprehensive map yet of tectonic stress magnitudes across North America, highlighting regions most vulnerable to earthquakes. The map and associated study, published ...

North Americans should breathe easy: New research confirms that the continent has eroded very little over the past 1.5 billion years and, in all likelihood, won’t shed much ground in the next billion ...

Researchers have discovered that the North American continent is slowly losing rock from its underside in a process called "cratonic dripping." This is caused by the remnants of the Farallon Plate, an ...

BERKELEY, Calif., Aug. 26 (UPI) -- The North American continent is not one single, solid slab, researchers say, but rather a layer cake of old and new material dating back 3 billion years.

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 ...

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 ...

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 ...

Growing up, most of us learned that Earth is home to seven continents. But it may be time to rewrite the geography textbooks, as a controversial study now claims there are actually only six continents ...

New theories on what happened after Indians reached Alaska from Asia. June 27, 2012 — -- A serendipitous discovery on a remote island off the coast of Alaska may provide a turning point in the ...

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 ...