The 9 most powerful nuclear weapon explosions

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They are all more powerful than the bombs used on Hiroshima and Nagasaki at the end of WWII.

The United States and Russia now have thousands of nuclear weapons each, with China, France, the United Kingdom, India, Pakistan, North Korea and Israel also having nukes. The ongoing Russian invasion of Ukraine has sparked fears that such nuclear weapons could end up being used. 

Here, Live Science takes a look at the most powerful nuclear weapons ever detonated — specifically explosions that exceeded 10 megatons. In comparison, estimates for the Hiroshima bomb are around 15 kilotons. Documents from the U.S. Department of Energy and the Russian Federation's Ministry of Defense revealed plenty of high-energy blasts. Even so, there are a number of nuclear weapon detonations whose yields are uncertain, so only those detonations whose yields are known with confidence are included here. All of these behemoth blasts are many times more powerful than those that were used on Hiroshima and Nagasaki at the end of World War II. 
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