Ukraine’s Zaporizhzhia nuclear power plant , built during the Soviet era and one of the 10 biggest in the world, has been engulfed by fighting between Russian and Ukrainian troops in recent weeks, fueling concerns of a nuclear catastrophe. Here is a look at the current situation: WHAT IS HAPPENING NOW The plant has six reactors, only one of which was operational as of Saturday. The shelling so far hasn’t damaged the plant’s reactors or spent nuclear fuel storage, but has repeatedly struck some auxiliary equipment. On Monday, the plant was knocked off Ukraine’s electricity grid after its last transmission line was disconnected because of a fire caused by shelling. Pending repairs, the plant’s only operational reactor was generating the power the plant needs for its own safety in so-called “island mode.” Two inspectors from the U.N.’s atomic watchdog have remained at the plant following a visit by a […]