Nuclear weapons haven’t been tested in the United States since 1992. Find out why, and what could happen if the hiatus ends.

The world passed a nuclear milestone this week. And, perhaps surprisingly given the recent run of saber-rattling from the likes of Russia and the United States, it’s a positive one.

Regional fears of a U.S. attack on Iran have eased after President Donald Trump said Tehran had assured him that protesters ...

A 4.2 magnitude earthquake struck the Negev Desert in southern Israel, prompting widespread speculation about a potential ...

Tensions are growing in east Asia. The threat of a Chinese attack on Taiwan persists and, in recent weeks, North Korea has been testing its long-range missile capabilities. Russia’s reorientation of ...

IAEA Director General Rafael Grossi says the use of nuclear weapons in the Russia-Ukraine war is "unlikely", while Iran holds ...

Rising threats are prompting some politicians in Japan, the only nation attacked with nuclear weapons, to reconsider its position.

A Princeton University simulation shows how a single low-yield nuclear weapon could rapidly spiral into a full-scale ...

Russia said its strike was retaliation for a claimed drone attack that President Donald Trump said never happened. Kyiv’s ...

For the first time since the end of the Cold War, nuclear arsenals are growing, and the weapons themselves are becoming more ...