A U.S. official focusing on arms control has provided what he called new, declassified details of a Chinese underground ...

Prior to his meeting with China’s President Xi Jinping in Busan, South Korea on October 30, United States President Donald Trump wrote that he has ordered the U.S. military to resume nuclear testing ...

WEST PALM BEACH, Fla. (AP) — New tests of the U.S. nuclear weapons system ordered up by President Donald Trump will not include nuclear explosions, Energy Secretary Chris Wright said Sunday. It was ...

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 ...

The Taleghan nuclear site has been utilized by the Iranian regime to advance its capabilities for developing nuclear weapons.

Add Yahoo as a preferred source to see more of our stories on Google. An unarmed Trident II D5 missile launches from an Ohio-class ballistic missile submarine off the coast of Florida. The four ...

The Mirror can reveal proof that the Atomic Weapons Establishment and the Ministry of Defence worked together in the longest ...

In a November 5 meeting of the Security Council of Russia, President Vladimir Putin directed his military and political leaders to “submit coordinated proposals on the possible first steps focusing on ...

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 ...

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 ...

Nuclear weapons tests are among the most violent events humans can trigger, and that violence leaves fingerprints in the Earth, sea, air, and even in orbit. The physics of shock waves, sound, and ...