Not only Chernobyl and Fukushima. These are the ten most serious nuclear accidents with fatalities that have occurred throughout history.

Chernobyl (USSR, 1986) Reactor 4 exploded during a safety test, releasing massive amounts of radiation across Europe.

Fukushima (Japan, 2011) An earthquake and tsunami triggered the meltdown of three reactors, causing a massive radioactive leak into the air and the ocean.

Kyshtym (USSR, 1957) An explosion at a plutonium reprocessing plant released radioactive material over a vast area. The incident was kept secret for decades.

Three Mile Island (USA, 1979) A failure in the cooling system caused a partial core meltdown, sparking widespread panic about nuclear energy in the United States.

Tokaimura (Japan, 1999) A human error at a fuel processing plant caused an uncontrolled nuclear reaction that killed two workers.

Windscale (United Kingdom, 1957) A fire in a reactor released radioactive iodine, contaminating milk and affecting public health.

Goiania (Brazil, 1987) An abandoned medical device containing cesium-137 was handled by civilians, resulting in deaths and radioactive contamination in an urban area.

SL-1 (USA, 1961) An experimental reactor exploded in Idaho, killing three operators. To this day, it remains the only fatal nuclear accident on U.S. soil.

Mayak (USSR, 1940s–60s) For decades, this facility dumped radioactive waste into the Techa River, affecting thousands of people.

Soreq Accident (Israel, 1990) A technician received a lethal dose of radiation while handling a cobalt-60 source without proper protection.