NNSA to unveil an AI-designed nuclear test flight vehicle on the National Mall, touting a faster, cheaper path to advancing U ...

North Korea carried out six nuclear tests beneath Mount Mantap between 2006 and 2017, with the final blast powerful enough to ...

President Donald Trump on Thursday appeared to hint the US could restart nuclear weapons testing for the first time in three ...

Kim Jong Un inspected a new plant that makes weapons-grade nuclear material on Wednesday and said Pyongyang plans to “beef up our state’s nuclear forces at an exponential rate,” according to a report ...

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

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 ...

Treaty has scored major successes but faces criticism over loopholes, undeclared arsenals, questions over disarmament Geopolitical tensions, modernization of arsenals continue to test agreement's ...

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 ...