Here, we explore six notable civilizations that have collapsed, shedding light on some of the causes behind their demise and ...

Rocks from Greenland found on Iceland's west coast could link the late Roman Empire's fall to a spell of sudden climate ...

In the sweltering summer of AD18, a desperate chant echoed across China's sun-scorched plains: "Heaven has gone blind!" ...

Scientists believe that the motion of Earth's continents through plate tectonics has been largely steady over millions of years. New research, however, suggests this drift can speed up or slow down ...