In a cave overlooking the ocean on the southern coast of South Africa, archaeologists discovered thousands of stone tools, created by ancient humans roughly 20,000 years ago. By examining tiny details ...

Scientists say that the geographical North Pole is on the move and could shift nearly 90 feet (27 metres) by 2100.

Unusual rocks on an Icelandic beach were dropped there by icebergs, adding to evidence that an unusually cool period preceded ...