When a nuclear accident happens, it’s vital that scientists have accurate fallout models.

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 ...

Gen. Stephen Whiting, the commander of U.S. Space Command, recently made waves when he publicly discussed a major threat that America’s newest military branch recently war-gamed — that of an adversary ...

When Iran’s covert nuclear program came to international attention over two decades ago, Tehran insisted that its intentions were peaceful and that it had no plans to develop weapons. The country’s ...