NUCLEAR reactors are seen as one of the greatest technological marvels and terrors of the 20th Century, with the harnessing of fission reactions - the splitting of the the atom - to generate heat and electrical power being seen as one of the major points of the late 1940s and the 1950s as a whole.
However, is it true that nature beat mankind to the punch with naturally-occurring 'nuclear reactors' emerging billions of years in the past?
