In 1961, the Soviet Union detonated the most powerful nuclear weapon ever built—an explosion so massive it was felt around ...

Discover the dramatic story behind the Tsar Bomba, the largest nuclear weapon ever detonated. This video explores its Cold ...

North Korea said Sunday it had tested a hydrogen bomb which it can mount on a missile, declaring "perfect success" in its biggest-ever nuclear detonation. Pyongyang has long sought the means to ...

A bomb hundreds of times more powerful than the one dropped on Hiroshima is set to be disassembled in Amarillo, Texas Tuesday, almost 50 years after it was put into service during the Cold War. It is ...

President Trump’s statements about nuclear testing affirm his determination to ensure that the United States maintains the most powerful nuclear arsenal in the world. Last week, President Trump ...