Nuclear weapons haven’t been tested in the United States since 1992. Find out why, and what could happen if the hiatus ends.

Decades after the fall of the Berlin Wall, the Pentagon realized that deploying megaton-yield gravity bombs over Europe the ...

A Princeton University simulation shows how a single low-yield nuclear weapon could rapidly spiral into a full-scale ...

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.

This op-ed's authors argue that the president's nuclear testing comments were correct, considering America's aging arsenal ...

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 ...

VIENNA (AP) — In the wake of U.S. President Donald Trump’s suggestion earlier this year that the U.S. would resume nuclear ...

The simple truth is that the United States and its rivals have nuclear arsenals sufficient to end life on Earth many dozens of times over. The United States’ nuclear arsenal is not based on a single ...

Matt Korda, the associate director of the Nuclear Information Project at the Federation of American Scientists, assisted USA ...

President Donald Trump announced on Thursday, “Because of other countries testing programs, I have instructed the Department of War to start testing our nuclear weapons on an equal basis. That process ...

President Donald Trump ordered the Department of War to resume testing nuclear weapons “on an equal basis” with Russia and China on Thursday, a practice halted by the U.S. in 1992. The announcement ...