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

When the U.S. military detonated the world’s first nuclear weapon near New Mexico’s Jornada del Muerto desert in 1945, people living in the nearby areas were exposed to harmful radiation. Weeks later, ...

(Corrections & Clarifications: This story previously misstated how far nuclear fallout from the government's atomic tests reached. Fallout from the initial Trinity Test reached 46 of the 48 contiguous ...

The U.S. scientists who tested the first atomic bomb, July 16, 1945, took the ultimate gamble of setting the atmosphere on fire and destroying all life on Earth. When Robert Oppenheimer, the civilian ...

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.

MAJURO, MARSHALL ISLANDS — Lemeyo Abon learned about snow from the movies played on projectors by visiting American sailors. But living on Rongelap — a remote tropical atoll in the central Pacific ...

President Trump says he’s instructed the Pentagon to begin testing nuclear weapons for the first time in over 30 years. Citing China and Russia, Trump wrote on his Truth Social platform, “Because of ...