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.

Explosions were reported in the western city of Lviv after the threat of an intermediate-range ballistic missile was detected ...

Developing nuclear fusion and modernizing the US nuclear arsenal will require substantial collaboration with the private ...

The Russian Defense Ministry said on Friday that it had struck western Ukraine with a nuclear-capable intermediate-range ...

At least four people were killed and 19 others injured in Kiev after Russia pummelled Ukraine with missiles and drones ...

Great power competition gives the United States all the more reason to invest in international cooperative frameworks for ...

In 1961, the Soviet Union detonated the largest nuclear weapon ever built, a test so powerful it sent shockwaves around the ...

Donald Trump and Volodymyr Zelensky meet to work out an agreement to end the Ukraine war, but what security guarantees is Zelensky looking for? Plus, Benjamin Netanyahu comes to Mar-a-Lago to discuss ...

President Trump said Wednesday that he has instructed the Defense Department to immediately begin testing U.S. nuclear weapons on an equal basis to China and Russia. “The United States has more ...

The missile is capable of carrying nuclear warheads, although there was no suggestion that the one used in the overnight ...

According to Russian Deputy Foreign Minister Sergey Ryabkov, Russia is keeping the diplomatic door open where strategic stability is concerned MOSCOW, December 22. /TASS/. A senior Russian diplomat ...