New details about North Korea’s nuclear bomb-building activity have stoked fears that Supreme Leader Kim Jong Un could supply ...

Its leader, Kim Jong-un, visited the factory and urged his country to produce more highly enriched uranium to build ...

American and British leaders are growing concerned that Russia may be sharing nuclear secrets with Iran to bolster its weapons program in exchange for ballistic missiles to bomb Ukraine ...

Tensions in the Middle East may spur Iran to speed up its suspected pursuit of a nuclear weapons program. North Korea continues to modernize and expand its nuclear arsenal. And if Donald Trump wins a ...

SEOUL – North Korea has disclosed the first photos of a uranium enrichment site designed to produce weapons-grade fuel for its nuclear bombs. Here's what we know about its growing nuclear arsenal.

North Korea has given a rare insight into the heart of its secretive nuclear weapons programme which produces fuel for atomic bombs. Images released by the country's state news agency (KCNA ...

Japan’s military says it detected North Korea test-firing at least one ballistic missile, adding to its military ...

India’s second nuclear-capable ballistic missile submarine joined its naval fleet late last month, a move the government says ...

Moscow has not conducted a nuclear weapons test since 1990, the year before the fall of the Soviet Union, but some Western and Russian analysts say President Vladimir Putin could order one to try ...

A Philadelphia teenager who authorities say wanted to travel overseas and make bombs for terrorist organizations will be ...

Vladimir Putin is raising the spectre of the Cold War as he threatens to resume testing at a remote Arctic facility where the Soviets detonated the most powerful nuclear bomb to ever exist.

This letter, which played a pivotal role in the development of the atomic bomb, was originally addressed to the US president, highlighting the grave potential of nuclear weapons and the urgent ...