Add Yahoo as a preferred source to see more of our stories on Google. This Sunday marks 40 years since the Chernobyl disaster, which the UN says affected more than 3.5 million people and contaminated ...

The Chernobyl disaster began in the early hours of April 26, 1986, when a reactor at the Chernobyl Nuclear Power Plant exploded during a safety test. The explosion and subsequent fire sent a plume of ...

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The 1986 Chernobyl disaster released massive radiation and affected millions. Dozens died immediately, with thousands more linked to long-term effects. The area remains restricted as cleanup continues ...

Nearly four decades after the world’s worst nuclear disaster, Chernobyl remains one of the most mysterious places on Earth.

In April 1986, the world changed forever when the Chernobyl nuclear disaster unfolded in what was then the Soviet Union. What began as a late-night safety test at Reactor No. 4 quickly turned into the ...