21/08/2026
About 2 billion years ago, uranium deposits in what is now Gabon produced sustained nuclear fission without human engineers.
Scientists discovered evidence of these natural nuclear reactors when they noticed something unusual about uranium from the Oklo region.
Groundwater helped create the conditions needed for the reactions to continue, while the surrounding geology preserved evidence of what happened.
No laboratory.
No reactor design.
No engineers.
Just geology, water and the right conditions.
Nature had already demonstrated nuclear fission billions of years ago.
Geology AfricanHistory