Over two hundred fifty million years ago, India, Africa, Australia, and South America were all one continent called Pangea. Over the next several million years, this giant southern continent proceeded ...

Archaeologists unearth traces of a 14,000-year-old struggle for survival — when early humans risked everything to hunt bears.

(Program not available for streaming.) Fifty years later, what can science tell us about the Kennedy assassination—and the investigations that followed? The 1963 murder, in broad daylight in front of ...

"A slow-moving Category 3 hurricane or larger will flood the city. There will be between 17 and 20 feet of standing water, and New Orleans as we now know it will no longer exist." —Ivor van Heerden, ...