Rocks from Australia have given scientists the oldest direct proof that Earth's surface was moving in separate pieces 3.5 billion years ago.

The rocks didn’t look like much from the outside. Scattered across a remote stretch of western Australia called North Pole Dome, they were ancient, weathered, and largely ignored for the better part ...

New research led by a University of Wyoming archaeologist is challenging a widely accepted idea about the earliest people in the Americas. The study focuses on an ancient site in South America and ...