When it comes to determining the age of stuff scientists dig out of the ground, whether fossil or artifact, “there are good dates and bad dates and ugly dates,” says paleoanthropologist John Shea of ...

Despite seeming like a relatively stable place, the Earth's surface has changed dramatically over the past 4.6 billion years. Mountains have been built and eroded, continents and oceans have moved ...

The development of absolute dating methods has had the most profound effect on our understanding of the past. All self-respecting archaeologists should have a basic grounding in radiocarbon dating, ...