A grapefruit-sized sphere of plutonium holds enough energy to wipe a city off the map. But how does that actually work? From chain reactions to hydrogen bombs, we’re breaking down the terrifying ...

Alex Wellerstein joins WIRED to answer the internet's burning questions about nuclear science. Which nations have nuclear bombs? Who decides who gets to have nuclear warheads and who doesn't? Why were ...

How are nuclear weapons maintained and modernised in the 21st century? America stopped explosively testing its warheads and bombs in 1992. Now the country relies on sophisticated computer simulations ...

Work to make bomb materials also went on at a plant in Hanford, Wash. The focus shifted to the remote desert of Los Alamos, N.M., where the actual bombs were built. In July 1945 the first successful ...

The worlds first hydrogen bomb, codenamed 'Mike'. Nuclear weapons testing conducted by the US at Bikini and Enewtak atolls in ...

The U.S. altered the course of history 80 years ago when it dropped the atomic bomb on Japan. It was an audacious move that ultimately led to the end of World War II. The motivation and secrecy ...

Russian President Vladimir Putin, dressed in a military uniform, announced on Oct. 26, 2025, that Russia had successfully tested a nuclear-powered missile. If true, such a weapon could provide Russia ...

Oct 30 (Reuters) - U.S. President Donald Trump ordered the U.S. military on Thursday to immediately resume testing nuclear weapons after a gap of 33 years, minutes before beginning a meeting with ...

The Energy Department and Air Force in August successfully carried out the first tests dropping unarmed B61-12 nuclear gravity bombs from an F-35A fighter, the laboratory in charge of overseeing ...

In November, the General Assembly’s First Committee, adopted a resolution that looks at the risks of integrating AI into nuclear weapons.