|The damaged reactor|
On April 26, 1986, the core of the Chernobyl reactor No. 4 exploded. Fragments of the core were thrown through the roof, from which radioactive dust escaped during ten days. The picture shows the state of the reactor after the explosion, before the construction of a sarcophagus prevented radioactivity in the lava and remaining structures from spreading in the environment. Behind, one can see the twin unit No. 3 that continued to operate until December 2000.