The post-war international order may be tearing apart at the seams and international law is increasingly looking like a ...

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.

Scientists at Los Alamos National Laboratory say neutrinos could be used as a diagnostic ...

The only remaining nuclear arms control treaty between the U.S. and Russia, the Strategic Arms Reduction Treaty, NewSTART, expires on February 5, 2026. Russia withdrew from NewSTART in 2023, but has ...

Resuming full testing of nuclear weapons — as President Donald Trump called for last week — would be unnecessary, costly, undermine nonproliferation efforts, and empower the nation’s adversaries to ...

Minutes before walking into a high-stakes meeting with Chinese President Xi Jinping this past week, President Donald Trump announced what could prove to be a stunning shift in American nuclear policy.

America’s last nuclear detonation was nothing special. Smaller than the bomb that killed 73,000 people in Nagasaki, it exploded 1,397 feet below the Nevada desert. It shook the ground, created a ...

Nuclear weapons testing has affected every single human on the planet, causing at least 4 million premature deaths from cancer and other diseases over time, according to a new report delving into the ...

In 1961, the Soviet Union detonated the largest nuclear weapon ever built, a test so powerful it sent shockwaves around the planet and shattered windows hundreds of miles away. This video explains why ...

President Trump and one of his top cabinet officials are sending mixed messages on how the U.S. government is handling the most destructive weapons in the world. By David E. Sanger and Zolan ...

Independent analysts confirm parts of a controversial study suggesting unknown objects appeared when humanity detonated nukes.

Energy Secretary Chris Wright revealed the U.S. will not be testing nuclear explosions, putting to rest questions over whether the Trump administration would reverse a decades-old taboo. Testing will ...