The culprit behind the mysterious disappearance of one of the most advanced urban civilizations at the time, contemporaries ...

Archaeologists have long known that complex societies can rise, flourish and then disappear so completely that only scattered ruins hint at what was lost. Now a new wave of research is sharpening the ...

These out-of-place artifacts, or OOPArts, are surprising for their place and time — but there's an explanation behind each ...

Archaeologists have long known that complex societies can unravel with startling speed, but a growing body of evidence suggests at least one ancient culture reached a level of sophistication that ...