Add Yahoo as a preferred source to see more of our stories on Google. FILE - In this photo taken from video released by Russian Defense Ministry Press Service on Oct. 26, 2022, a Yars intercontinental ...

President Donald Trump reiterated his call for the U.S. to resume nuclear testing in a video he posted on his social media platform Truth Social. “Because of other countries’ testing programs, I have ...

America’s top nuclear security official has issued an 'urgent' warning against leaking classified information, as political tension over U.S. nuclear weapons testing intensifies. A reported memo from ...

The head of the agency responsible for designing, building, storing and testing the U.S. nuclear arsenal recently gave senior personnel an unusual warning about leaking classified information. The Nov ...

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 ...

Email notifications are only sent once a day, and only if there are new matching items. It might not have as reverent a name as the Trinity Test or a litany of films made about it. But Project Gnome, ...

Should the U.S. and Russia resume nuclear testing? The answer to that question must be a resounding “No.” Yet President Donald Trump and Russian leader Vladimir Putin, eager to project strength, have ...

Late last week, the U.S. leveled an explosive claim: China is planning secret nuclear weapons tests and has already conducted at least one. The undersecretary of state for arms control and ...

Senate Democrats want to curb President Donald Trump’s ability to unilaterally resume nuclear testing, as the president suggested the U.S. would do on an "equal basis" with Russia and China moving ...

VIENNA (AP) — The United States and Russia have both recently threatened to resume nuclear testing, alarming the international community and jeopardizing a global norm against such tests. Experts say ...