Add Yahoo as a preferred source to see more of our stories on Google. If the largest nuclear bomb ever designed by the Soviet Union were dropped on downtown Atlanta, anything within a nearly five-mile ...

Imagine a 150-kiloton nuclear bomb exploded in the city closest to you. Do you know how the city, its surrounding region, and its inhabitants would be affected? If you can't think of much more than "a ...

It’s a question that’s haunted scientists, governments, and anyone who’s ever watched a disaster movie set in Manhattan. Now, ...

The threat of World War III appears increasingly real, as the recent dramatic escalation in tensions between Iran and the US/Israel pushes the world dangerously toward a major conflict unseen in ...

A chilling Cold War-era map reveals the devastating consequences of a nuclear attack on American territory, projecting that up to 75% of residents in the most severely affected areas could perish.

With the war in Iran re-igniting fears of WW3 and nuclear war, scientists have deciphered which states would suffer a "nuclear winter" in the event of a nuclear war. Experts have long warned that ...

New comments by Russian figures, including Vladimir Putin allies, have sparked discussion about the hypothetical impact of a nuclear strike on Ireland.