thumb|The natural nuclear fission reactors of Oklo:
via Wikidata · CC0
thumb|The natural nuclear fission reactors of Oklo:
Oklo is a geological region near Franceville in the Haut-Ogooué Province of Gabon. Several natural nuclear fission reactors were discovered in the uranium mines in the region in 1972.
3 mapped locations
via Wikidata sitelinks · CC0
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).