The horseshoe-shaped Midcontinent Rift is a 2,000-kilometer scar that is also called North America's 'broken heart' by ...

Scientists have uncovered a massive ancient geological feature beneath the Midwestern United States — a billion-year-old rift ...

The rifting began roughly 1.1 billion years ago due to tectonic forces pulling what is now the North American continent in ...

Earth may not have seven continents after all. From the earliest of grades, schoolchildren around the world have memorized ...

LiveScience reports that a team of researchers analyzed ancient remains found at the Cooper’s Ferry archaeological site ...

UNC-Chapel Hill history professor Kathleen DuVal recently won a Pulitzer Prize for her book, "Native Nations," which ...

At an event in the Oval Office, President Trump announced some details of his plan for a "Golden Dome" missile defense system ...