duga radar in chernobyl exclusion zone. chernobyl nuclear accident occurred on 26 april 1986. spring time

abandoned town ground dangerous autumn radioactive nuclear graveyard burial decay complex system desolate cemetery danger pripyat duga ussr chernobyl radar radiation people urban hazardous ukraine ghost disaster deserted hazard zone place soviet radiant contamination city accident exploration antenna duga3 exclusion zone occurred april 1986 spring time 1986