Corium lava was produced at both Chernobyl and Fukushima Dai’ichi, and on a smaller scale at Three Mile Island. It’s a rare thing, this man-made lava, and it’s only produced when humans ...

The dispersal of radioactive wastewater from the Fukushima-Daiichi reactor disaster ... cooling the 880 tons of molten reactor fuel (or ‘corium’) still thermally hot and radioactively ...