A Look Back at What Caused the Chernobyl Disaster


1 of the worst disasters in history happened. It was a Saturday in the early morning when reactor number four at the Chernobyl nuclear power plant exploded in what is now Ukraine. Ironically, the incident started during a safety test. It was supposed to be a simulation of an electrical power outage and to test the cooling function to keep the reactor stable. A combination of dangerous conditions and design flaws led to an uncontrolled nuclear chain reaction. It was considered the worst nuclear disaster in history in terms of cost and casualties. It's one of only two nuclear accidents that has been raided a seven, which is the highest disaster level on the rating scale. Today, Chernobyl is a ghost town labeled the Zone of alienation. All because of the major disaster on this day in 1986. You know, I watch all those

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