Why can’t we dump nuclear waste in the same place we mine nuclear fuel?
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Fun Fact:
There is a uranium mine in Africa called Oklo that underwent nuclear reaction on its own around 2 billion years ago. The reaction was self sustaining for hundreds of thousands of years.
It was predicted in the 1950s that such a thing was possible by a Japanese scientist and in the 1970s Oklo was discovered when they noticed 200kg (440lbs or 6 nuclear bombs) of uranium that was supposed to be there was missing.
[Scishow gave a short explanation how it happened](https://youtu.be/yS53AA_WaUk?t=79)
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