MIT scientists have used modern technology to unravel the mysterious self-healing properties of ancient Roman concrete.

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 ...

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 ...