On Nov. 13, 1972, Terry Christensen was working in his office at Dixon Inc. on Orchard Mesa when he, like others, “felt the tremor.” He added. “We went out and saw the smoke. We saw a mushroom cloud, ...

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 ...

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 ...

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