Hydrogen bombs cause a bigger explosion, which means the shock waves, blast, heat and radiation all have larger reach than an ...

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

The United States has revealed new details about a Chinese underground nuclear test that it claims happened nearly six years ...

The allegations were leveled by U.S. officials late last week. Arms control experts worry that norms against nuclear testing are unraveling.

CHINA has been accused of a massive nuclear expansion as well as carrying out secret tests, as the United States bids to ...

Remarks by a top administration official appeared to be aimed at dispelling skepticism of its assertions, as President Donald ...

A US official has presented evidence of a secret Chinese nuclear test, raising tensions in global arms control discussions.

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 ...

Add Yahoo as a preferred source to see more of our stories on Google. Nuclear explosion in the desert. Credit: Alones / Shutterstock. (Nuclear explosion in the desert. Credit: Alones / Shutterstock.) ...

Add Yahoo as a preferred source to see more of our stories on Google. Some believe Donald Trump has been engaging in nuclear sabre-rattling intended to intimidate China - Alex Brandon/AP The United ...

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 ...

From Trinity’s fallout to a New Mexico school underground, “Nuclear Family” traces how the bomb reshaped one family and a ...