When both minerals form, they trap small amounts of radioactive uranium – which, at a known rate, will decay into lead. By ...

The past teemed with unknown gods who visited the primeval Earth in manned spaceships,' he declared in his first global bestseller, Chariots Of The Gods, in 1968.

The vast majority of our planet’s oceans remain unexplored, hiding secrets that challenge everything we thought we knew about ...

One of the greatest Ancient Egyptian finds is the discovery of King Tutankhamun's tomb in 1922, which was left untouched ...

Today, Machu Picchu is among South America’s most visited historical sites. Here are amazing things we know about this legacy ...