Protesters chant slogans as one of them holds up a poster of the Iranian Supreme Leader Ayatollah Ali Khamenei in a protest following the U.S. attacks on nuclear sites in Iran, in Tehran, Iran, Sunday ...

The safe and secure use of nuclear and other radioactive material, along with the operation of nuclear facilities and management of associated facilities and activities, rely heavily on information ...

As the demand for nuclear security solutions grows, distinguishing a benign medical isotope from a potential threat is ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Russia is seeking to target three Ukrainian nuclear power plants, ...

President Macron's new concept of 'dissuasion avancée' marks a revolution in French nuclear policy. With this, Paris seeks to complement—not replace—US extended deterrence.

The resumption of nuclear weapons testing by the United States will undermine national security, arms control advocates told Newsweek. Daryl Kimball, executive director of the Arms Control Association ...

A nuclear expert has sounded the alarm over what could happen to Iran's enriched uranium (Image: UGC/AFP via Getty Images) A nuclear expert has revealed their biggest concern about the Iran war as ...