Instead, for its one and only test in 1961, Soviet scientists "downrated" the Tsar Bomba to around 50 megatons by swapping out uranium for lead in at least one of the bomb's stages.

Last year, the Russian nuclear energy agency, Rosatom, released a 30-minute, formerly secret documentary video about the detonation of the world's largest hydrogen bomb, dubbed "Tsar Bomba." ...

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 ...

The Tsar Bomba remains the most powerful nuclear bomb ever detonated, a weapon of unimaginable destruction. Designed by the Soviet Union in the 1960s, its explosive yield was 50 megatons of TNT, ...

The Tsar Bomba, the largest and most powerful nuclear weapon ever detonated, remains an iconic and terrifying testament to the destructive power of nuclear energy. Developed by the Soviet Union during ...

Star Trek's United Federation of Planets have their own version of a nuclear warhead but are they stronger than humanity's ...

In 1961, Russia detonated the Tsar Bomba, the most powerful nuke in history, over a remote Arctic island. New footage has been declassified and shared on YouTube.

Next month it will have been 80 years since the Japanese cities of Hiroshima and Nagasaki were devastated by nuclear attacks.

The Tsar Bomba, roughly translated as "Emperor Bomb," is by far the most powerful nuclear bomb detonated to date. It exploded with a force of 50 megatons, although it was originally designed to ...

The NUKEMAP website, created by nuclear weapons historian Alex Wellerstein, showed that if Tsar Bomba had been detonated in Washington, D.C., it would've killed more than 2.2 million people and ...

Tsar Bomba At number one is the Tsar Bomba (also known as AN602), the most powerful nuclear weapon ever created and detonated. This monstrous device was built by the Soviet Union and tested in 1961.