Here’s What You Need to Remember: The Soviet Union would no longer pursue massive nuclear devices like the Tsar Bomba after observing the results, even though they had the technology to create a nuke ...

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 size.