A new study reveals that farming in Argentina’s Uspallata Valley was adopted by local hunter-gatherers rather than introduced by outside populations. Centuries later, a stressed group of maize-heavy ...

Few things grip the human imagination quite like a civilization that was once great - building cities, writing laws, trading across continents - and then simply disappeared. Not conquered, not ...

This week temperatures in this dusty corner of Arizona were 105F (40C) - and turned visiting America's most famous unsolved crime scene into a gruelling endurance sport.

Fungi create soil, sequester vast amounts of carbon, and contribute $55 trillion to the global economy, but knowledge about them is scarce. Now, mycologists are pushing to get the international ...

Pima County Sheriff Chris Nanos believes Nancy Guthrie's abduction case "is not even close to being cold," almost two months ...

On Monday, a paper announcing that all four DNA bases had been found on an asteroid sparked a lot of headlines. But many of ...

Prosecutors break down the evidence, timeline, and key moments in the Luke Truesdell quadruple murder case that shook the community.