Hydronuclear experiments, barred globally since the 1990s, may lie behind President Trump’s call last month for the United ...

Hiroshima, Japan — Koko Kondo was returning from the Vatican, where she had sat beside Pope Leo XIV and delivered the closing ...

As global concern over nuclear tensions periodically resurfaces, one of the world’s leading historians of nuclear weapons has ...

In 1957, scientists detonated a nuclear bomb under the Nevada desert — and launched a steel manhole cover at unimaginable ...

Against this backdrop, I can’t stop thinking about a scene in the new film “A House of Dynamite.” A clean-cut U.S. Navy ...

Was President Trump’s recent directive to resume U.S. nuclear testing — after a hiatus of 33 years — an actual policy ...

While the significance of testing nuclear weapons dwindled over 60 years ago, the terrifying circumstances that brought that ...

By John Fairlamb, Ph.D., Defense Opinion Writer. Restarting explosive nuclear weapons testing, or even for political reasons ...

As Moscow threatens to launch nuclear warheads against NATO states helping Ukraine fend off the Russian invaders, the world ...

The Energy Department and Air Force in August successfully carried out the first tests dropping unarmed B61-12 nuclear ...

Risks of a serious crisis are rising. But for disaster response, the information environment has never been worse.