Hydronuclear experiments, barred globally since the 1990s, may lie behind President Trump’s call last month for the United ...

North Korea's warning comes after renewed speculation of a meeting between President Trump and North Korean leader Kim Jong ...

As Moscow threatens to launch nuclear warheads against NATO states helping Ukraine fend off the Russian invaders, the world ...

The largest submarine in the world, Russia's massive K-329 Belgorod, was designed for special, covert operations and was last ...

Three experts spoke to Newsweek about the possibility of Moscow firing nuclear weapons into Ukraine as tensions escalate.

Iran’s foreign minister said his country would halt plans for a reinstatement of nuclear inspections at a time of heightened ...

President Trump and Mohammed bin Salman concluded the Saudi crown prince’s visit to the United States by speaking to more ...

Vladimir Putin is quietly amassing an arsenal within Russia's military machine, designed not to win a war in Europe, but to ...

But President Donald Trump ’s back-to-back announcements about nuclear testing and nuclear submarines on Oct. 29 during his ...

Nihon Hidankyo group says 'cannot allow nuclear arms to be brought into Japan or let country become base for nuclear war or ...

Plans have been announced to build a nuclear power "ecosystem" that would do everything from job training to ultimately a ...