Chernobyl disaster 25th anniversaryOn April 26, 1986, reactor number four at the Chernobyl nuclear power facility in what is now Ukraine exploded. The largest civil nuclear disaster in history led to mass evacuations, and long-term health, agricultural, and economic distress. The nearby city of Pripyat has been abandoned, and a 19-mile radius "exclusion zone" established where radiation contamination makes continued habitation dang
