Some serious nuclear and radiation accidents have occurred . Nuclear power plant accidents include the SL-1 accident ( 1961 ) , the Three Mile Island accident ( 1979 ) , Chernobyl disaster ( 1986 ) , and the Fukushima Daiichi nuclear disaster ( 2011 ) . Nuclear-powered submarine mishaps include the K-19 reactor accident ( 1961 ) , the K-27 reactor accident ( 1968 ) , and the K-431 reactor accident ( 1985 )
Three Mile Island accident
Three Mile Island accident
Nuclear reactor