North Korea warned this week that it might test a hydrogen bomb in the Pacific Ocean, after saying the country had already ...

UN Nuclear watchdog, the International Atomic Energy Agency (IAEA), has said that Iran holds 440.9 kg (972 pounds) of highly ...

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

The United States has revealed new details about a Chinese underground nuclear test that it claims happened nearly six years ago. The disclosure comes as tensions rise over global nuclear arsenals ...

Fears of World War 3 and nuclear attacks are on the rise. But how safe would you be in DC, VA and MD during nuclear war? See vulnerable spots.

A nuclear escalation in the Middle East would trigger a global catastrophe. Know the physics behind nuclear weapons, and the ...

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

The Enola Gay, the plane that dropped the atomic bomb on Hiroshima in World War II, is now a museum exhibit.

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.

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 ...