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 ...

Jeff Karson: Here we go. Abby Tang: This is lava. And this is also lava. One's man-made, and one's, well, coughed up by Mother Earth. But both these scientists are working toward the exact same ...