Ray Suarez talks with author Anthony DePalma about his new book "Here: A Biography of the New American Continent," about the North American neighbors of the United States. Well, there's no biography ...

The continent of North America is not a single, thick, rigid slab, but is instead more similar to a layer cake, with a section of 3-billion-year-old rock sitting atop much newer material, a new study ...

In a recent bulletin of the Superintendent of the Census for 1890 appear these significant words: “Up to and including 1889 the country had a frontier of settlement, but at present the unsettled area ...

Around a billion years ago, a geological event occurred in North America that could have completely changed the continent as people know it. This event could have split the North American continent in ...