Just read an interesting article about a natural, self-sustaining nuclear reaction that occured here on Earth........... [View all]

........1.7 billion years ago. The article describes a site in Africa where naturally occurring Uranium, water, oxygen and algae came together in the right geological formation to start a nuclear reaction that switched on and off for 150,000 years. The author then goes on to use this historical fact to bolster his support for nuclear power today as a safer alternative to fossil fuels. Anyone here familiar with our DU friend "NNadir" will probably find this last bit also rather familiar, as he also advocates for nuclear power plants as safe and sane alternatives to our planet killing ways.

https://www.sciencehistory.org/stories/disappearing-pod/the-worlds-only-natural-nuclear-reactor/

(NN - my apologies if I've got this wrong.)