A Ukrainian intelligence official claimed that Wagner mercenary fighters wanted to escalate their mutiny by stealing Russian nuclear weapons.
A U.S. intelligence assessment said that Iran is not currently producing a nuclear weapon as the two countries restarted discussions to de-escalate tensions.
The threat of the Soviet Union during the Cold War pushed the U.S. to produce a nuclear weapon 80 times more powerful than the bomb used in Hiroshima.
Former President Dmitry Medvedev suggested that Russia could use its nuclear weapons to end the war in Ukraine, which has been going on for more than 16 months.
A former British Army officer believes China would turn its back on Russian President Vladimir Putin if he used tactical nuclear weapons in the Ukraine war.
A 70-year-old Russian political analyst continued with his rhetoric justifying Moscow's need to escalate its nuclear threats against the West.
A nonprofit organization is leading the race to build underground bunkers in Japan as the country faces nuclear threats from neighboring countries.
A Russian political analyst said using nuclear weapons could prevent World War III and save humanity, even though it is a difficult moral choice.
French military officials clarified that the mysterious trails in the sky spotted earlier this week were produced by a test flight of its hypersonic weapon.
Almost 62 years after it was detonated, Tsar Bomba still holds the title of the largest and strongest nuclear bomb ever produced by mankind.
Belarusian President Alexander Lukashenko received an unusual gift as his country continues to take delivery of tactical nuclear weapons from Russia.
Experts warned of risks if the Wagner paramilitary group succeeded in seizing control of Russia and gaining access to its nuclear warheads.
The two senators said the resolution sends a message to Russian President Vladimir Putin that NATO would respond if Russia uses nuclear weapons in Ukraine.
Russian emergency services discovered a suicide note after they found Soviet Russian nuclear physicist and thermonuclear bomb creator Grigory Klinishov dead.
President Volodymyr Zelenskiy said on Thursday Ukrainian spies believe Russia was plotting an incident to release radiation from Europe's largest nuclear plant, an allegation denied by the Kremlin.
President Joe Biden said the threat of Vladimir Putin using tactical nuclear weapons is "real," after Russia said it has begun delivering such weapons to Belarus.
Aftergood said that FRD documents must be stored in a properly secured space and "sticking it in your bathroom would not qualify."
Israeli Prime Minister Benjamin Netanyahu is still opposed to any nuclear pact with Iran, as the U.S. aims to reach an understanding with Tehran.
The exiled Belarusian opposition leader warned of the danger of delivering Russian nuclear weapons into the hands of President Alexander Lukashenko.
Russia is not ruling out using nuclear weapons to defend itself from enemies while insisting it does not want an escalation to a nuclear war.
A former adviser to Russian President Vladimir Putin is urging Moscow to ramp up its nuclear threats to counter the West and "save humanity."
Atomic scientists and other experts are alarmed over Russia's move to build nuclear-armed torpedoes that are likely more powerful than Tsar Bomba.