A horrifying video by researchers at Princeton University simulates how a nuclear war between the US and Russia might unfold, estimating that tens of millions would perish in the first 24 hours alone.

The city is perhaps the world's most famous nuclear ghost town - but it's not the only one. Other major nuclear accidents have prompted evacuations that turned cities and villages into ghost towns.

Probably the most dangerous element of my 2008 visit to the destroyed Chernobyl nuclear plant in Ukraine was the ... building's temporary shelter loomed as a haunting reminder of the heroic ...