Tsar Bomba nuclear test was the biggest ever: Since Russia first invaded Ukraine nearly two years ago, President Vladimir Putin and other Kremlin officials have routinely threatened nuclear escalation ...

The Cold War saw the creation of some truly wild and destructive weapons systems. While the United States and the Soviet ...

Key point: The Cold War’s nuclear arms race was truly absurd. Maj. Andrei Durnovtsev, a Soviet air force pilot and commander of a Tu-95 Bear bomber, holds a dubious honor in the history of the Cold ...

A newly-declassified video shows the testing of the Tsar Bomba, a nuclear weapon built by the former Soviet Union. The bomb was built in the midst of the Cold War, and only one was ever constructed.

MOSCOW (Reuters) - Russia has released previously classified footage of the world's largest nuclear explosion, caused when the Soviet Union detonated the so-called Tsar Bomba almost 60 years ago. The ...

The Russian nuclear agency, Rosatom, has released previously classified footage of the largest-ever hydrogen bomb blast. The hydrogen bomb, dubbed Tsar Bomba or “King of Bombs,” released the ...

Russia is developing a 100 megaton nuclear bomb that is put into a robotic submarine drone. It would explode in bay or off of a coast and trigger and megatsunami. It might also include cobalt 60 to ...

Russia's Rosatom, the country's state-owned nuclear corporation, released a new rare and clear footage of Tsar Bomba's 1961 test detonation, the world's most powerful atomic bomb. The published video ...