Radioactive fuel turns to goo during nuclear meltdown
Experiments reveal atomic rearrangements when uranium dioxide melts
![nuclear reactor in the Czech Republic](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2014/11/bm_Bohunice_free.jpg?fit=860%2C460&ssl=1)
CATASTROPHIC CLOSE-UP The structure of uranium dioxide, the most common fuel in nuclear reactors (such as this one in the Czech Republic), folds and collapses during a nuclear meltdown, a new study finds.
Janos Korom Dr./Wikimedia Commons (CC BY-SA 2.0)