Archaeologists working in northern Mesopotamia say they have uncovered visual patterns that look a lot like structured ...

Does Egypt’s most famous tomb hide a secret of ancient drug use? For over a hundred years, the alabaster jars in the burial ...

In the past year, two separate experiments in two different materials captured the same confounding scenario: the coexistence ...

From mudstones on Mars to strange gases in exoplanet atmospheres, tentative evidence for extraterrestrial life is starting to come thick and fast. But when we've found it, how will we know for sure?