Russia’s Poseidon is one of the most unconventional nuclear weapons ever conceived. Powered by a nuclear reactor and designed ...

The Nordic country, which shares an 830-mile border with Russia, said the move would strengthen the NATO alliance, which it ...

MIT researchers think they've worked out exactly how Russia's Burevestnik nuclear-powered missile flies. "It's almost ...

Finland could host nuclear weapons for the first time as Helsinki looks to face down Russian aggression. On Wednesday, ...

The country is urged to acquire a fully independent nuclear weapons system to deter Russia at a time of uncertainty about the ...

The Department of Energy bills Genesis as an AI push for scientific discovery. Its first public challenges tell a different ...

Finland’s parliament repealed the “Nuclear Weapons Prohibition Act,” enacted in 1980, on June 17. The parliament passed a ...

A surge in global spending on nuclear weapons has benefited some firms while increasing the risk of nuclear use.

EVIAN-LES-BAINS, France/DUBAI >> Details began to emerge today of the U.S. and Iran’s interim deal to end the war in the ...

Weapons-grade plutonium can fuel nuclear reactors known as mixed oxide reactors, but none of these exist in the U.S. Bypass the Strait of Hormuz with nuclear explosives? The U.S. studied that option ...

A 1963 commencement address at American University helped usher in the era of nuclear arms control. President John F. Kennedy ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. A senior Japanese official’s suggestion that Japan should possess ...