There has not been a major (or minor) nuclear explosion since the 1960s. This is almost entirely because ...

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

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

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

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

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

A 4.3 magnitude quake in Fars province was confirmed natural by United States Geological Survey and Comprehensive Nuclear-Test-Ban Treaty Organization, dismissing nuclear test rumors amid debate over ...

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

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

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

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.

US intelligence agencies believe that China is developing a new generation of nuclear weapons and has conducted at least one covert explosive test in recent years as part of a broader push to ...