Iran cannot use 60% enriched uranium directly in its current form (UF₆, which is stored as a solid in cylinders but handled as a gas or liquid during processing) to build a gun-type nuclear bomb. It ...

Washington has maintained an intense policy of opposing nuclear proliferation around the world for more than 8 decades. Not only have U.S. officials sought to prevent countries from building ...

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“In August of 1945, the city of Hiroshima was destroyed in about nine seconds by a single atomic bomb.” So begins the 1981 documentary The Day After Trinity, in a voice-over against a black background ...

Nuclear experts say it throws fuel on the smoldering fire of atomic proliferation, creating a destabilizing situation that could raise the risk of nuclear war. By David E. Sanger and William J. Broad ...

The nuclear submarines used by the United States Navy are modern military marvels, but they're not invincible -- there are weapons that can threaten them.

The threat of nuclear war has reached its highest in decades following an intense break out of conflict in the Middle East. US-Israeli strikes on Iran have triggered retaliatory strikes across many ...

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 ...