The allegations were leveled by U.S. officials late last week. Arms control experts worry that norms against nuclear testing ...

It remains to be seen whether the three big nuclear powers are headed into a new arms race, or whether President Trump is trying to spur negotiations on a new accord now that a last Cold War treaty ...

Limited nuclear war is a possibility grounded in strategic logic and a probability accentuated by the current geopolitical and military context. Planning for limited nuclear war is necessary not only ...

There are several ways to build a nuclear weapon. This videographic shows the process used to make a bomb with enriched uranium, utilising nuclear fission. This method could be considered by Iran, ...

Iran has faced suspicion for decades over its nuclear ambitions and whether it’s developing the capability to fire an atomic weapon. It agreed to cap its nuclear activities in exchange for sanctions ...

The United States hasn't tested nuclear weapons in three decades — but that might be about to change. The big picture: President Trump called for renewed nuclear tests on Wednesday, something the U.S.

DUBAI, United Arab Emirates (AP) — France, Germany and the United Kingdom started a process Thursday to reimpose United Nations sanctions on Iran over its nuclear program, further isolating Tehran ...

Dubai, United Arab Emirates — France, Germany and the United Kingdom started a process Thursday to reimpose United Nations sanctions on Iran over its nuclear program, further isolating Tehran after ...

The Rulison test — conducted at a depth of 8,425 feet — was the deepest subterranean nuclear-bomb detonation conducted in U.S. history.