Thirty-five years after the start of the nuclear age with the first explosion of an atomic bomb, I visited the expanse of ...

Deadlier weapons, more nations, autocrats in charge, disinformation and collapsing arms control — the risk of nuclear ...

Russia, the U.S. and China remain the world's three largest countries in terms of the size of their nuclear arsenals.

A single strike can obliterate millions. Even more concerning is the advent of “tactical” nuclear weapons — smaller bombs with concentrated impact, falsely marketed as controlled warfare.

They won’t be enriching. If they enrich, then we’re going to have to do it the other way,” Trump told reporters aboard Air ...

Iran’s intelligence minister has claimed without offering evidence that Tehran seized an “important treasury” of information ...

The International Atomic Energy Agency found Iran has upped its 60%-enriched uranium stockpile from 274.8 kilograms to 408.6 ...

August 6 will mark 80 years since the US dropped an atomic bomb on the Japanese city of Hiroshima. Little Boy, as the bomb ...

But we are manufacturing our doom. Nuclear weapons are weapons of mass destruction. Two were dropped on Japan in World War II, almost 80 years ago. In August 1945, a weapon equivalent to 15,000 ...

In the 80 years since, no other nuclear bomb has ... for a nuclear strike and reminded the world of the power of nuclear weapons to intimidate adversaries. Fortunately, senior physics writer ...

The U.N. nuclear watchdog says Iran has further increased its stockpile of uranium enriched to near weapons-grade levels.