Title:
Nuclear reaction at Chernobyl are spiking in an inaccessible chamber
Author:
Matthew Sparkes
Published:
NewScientist, 11 May 2021
From the article:
Scientists monitoring the ruins of the Chernobyl nuclear power plant in Ukraine have seen a surge in fission reactions in an inaccessible chamber within the complex. They are now investigating whether the problem will stabilise or require a dangerous and difficult intervention to prevent a runaway nuclear reaction.