Chernobyl

The Russian president called the disaster "a harsh lesson to humanity."

In the 30 years since the world's worst nuclear disaster, Chernobyl has become a symbol of hubris and its toxic discontents.

On April 26, 1986, a botched test at the nuclear plant in then-Soviet Ukraine triggered a meltdown.

Wolves, foxes and other mammals abound in contaminated areas.

Greenpeace tests show overall contamination from key isotopes has fallen somewhat, but lingers, especially in places such as forests.

A new study suggests that humans are worse for animal populations than nuclear disasters.

A documentary that premiered at Sundance sheds an eerie light on a possible cause for the Chernobyl nuclear disaster.

Energy minister says the problem should be resolved by Friday.

Chernobyl 2, a close neighbor to the infamous nuclear reactor, is a secretive radar site that has finally been opened to the curious

From high-end tourism to one of the world's most ambitious engineering projects, strange things are happening at the site of the worst nuclear disaster in history, which could still kill plenty of people