That was the moment when human beings first unleashed the power of the nucleus in an immense, blinding ball of fire above a ...

Operation Crossroads was designed to show what atomic weapons could do to a fleet at anchor and whether warships could still survive in the nuclear age. In 1946, a ghost fleet of battleships, carriers ...

A senior U.S. official offered new details Tuesday night about an alleged nuclear bomb test conducted by China in June 2020. Assistant Secretary of State Christopher Yeaw spoke at a Hudson Institute ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Russia’s test of a nuclear-powered cruise missile that it claims can ...

The 1996 Comprehensive Nuclear Test Ban Treaty (CTBT) has not yet entered into force due to the failure of eight key states, including the United States and China, to ratify it and Russia’s decision ...

The State Department's allegation that China conducted a yield-producing nuclear test in 2020 is reigniting debate in Washington over whether the United States can continue its decades-long moratorium ...

A recently uncovered British government paper provides evidence of a 70-year official cover-up of the consequences of the United Kingdom’s thermonuclear tests in the Pacific after World War II. London ...

Members of a committee for non-violent action to protest against continued experimentation with nuclear weapons, pose at a ...