The world's worst ever nuclear disaster took place at Chernobyl nuclear power plant in Pripyat, Ukraine back in 1986, and its effects are still being felt today. A 30-km (19-mile) exclusion zone is in ...

The clean-up operation around the worst nuclear disaster is still continuing. — -- Today marks the 30th anniversary of the Chernobyl disaster in Ukraine, the worst nuclear accident in history. In ...