Introduced in 1960, the American MK41 hydrogen bomb remains the highest-yield nuclear weapon ever placed in active service.

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 ...

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

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 ...