Two billion years ago– eons before humans developed the first commercial nuclear power plants in the 1950s– seventeen natural nuclear fission reactors operated in what is today known as Gabon in Western Africa [Figures 1 and 2]. The energy produced by these natural nuclear reactors was modest. The average power output of the Gabon reactors was about 100 kilowatts, which would power about 1,000 lightbulbs
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Nature’s Nuclear Reactors: The Two Billion Year Old Natural Fission Reactors in Gabon, Western Africa