At 1:23 and 48 seconds on April 26, 1986, reactor number four at the Chernobyl Nuclear Power Plant exploded - and then ...

Forty years after the reactor explosion, the wildlife around Chernobyl has recovered in strange and unexpected ways.

When the Chernobyl reactor exploded, the Soviet Union rushed thousands of volunteers into a lethal radiation zone. Among them ...

Between changing risk perceptions and new equipment developed to cope with extreme hazards, these major disasters have had a ...