Tsar Bomba Was the Largest Hydrogen Bomb Detonated in History, and It Helped End the Cold War. The titanic 27-ton mega-nuke’s explosion was so massive scientists still disagree about its actual ...

Consider the damage a 100-megaton version of the Tsar Bomba could inflict on Los Angeles — say, if detonated directly above the U.S. Bank Tower, the tallest building west of the Mississippi River.

Although the Tsar Bomba is recognized as the most devastating nuclear bomb ever tested, a number of other Soviet bombs developed around the same time also eclipsed anything the U.S. ever detonated.

Nuclear explosions are terrible, so imagine how terrifying the Tsar Bomba test was back in 1961, which is deemed the biggest nuclear explosion of all time. After decades, the video has been released.

A scholar of intelligence and strategy explains why battle damage assessments are so challenging – and why the process has ...

With global fears mounting, the threat of nuclear weapons has never felt so high. So what would the effect of one of the world's most powerful nukes be on a city like New York? The Tsar Bomba is ...

The most powerful atomic bomb ever tested was approximately 139 times more powerful than the recently-announced weapon.

The simulation for Russia's Tsar Bomba also showed the heavy blast damage radius, where heavily built concrete buildings would be damaged or demolished and deaths would reach 100 percent.

The satellite images point to damage to Fordo in the form of several large diameter holes or craters across the site. A layer ...

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.