Sen. Jacky Rosen went deep underground at the Nevada National Security Site on Monday, April 13, 2026, using a tour of a high ...

Add Yahoo as a preferred source to see more of our stories on Google. U.S. President Donald Trump with Chinese President Xi Jinping. China's nuclear expansion is on a trajectory to soon rival ...

Nearly 1,000 feet beneath the desert of southern Nevada, a sprawling underground laboratory helps certify every warhead in ...

The Idaho National Laboratory said the Demonstration of Microreactor Experiments facility will accelerate nuclear technology ...

The Demonstration of Microreactor Experiments test bed - built from the repurposed Experimental Breeder Reactor-II facility at Idaho National Laboratory - is now ready to host its first fuelled ...

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 ...

VIENNA (AP) — In the wake of U.S. President Donald Trump’s suggestion earlier this year that the U.S. would resume nuclear testing, a U.S. government representative defended the stance at a global ...

GENEVA, Feb 6 (Reuters) - The United States accused Beijing on Friday of conducting a secret nuclear test in 2020 as it called for a new, broader arms control treaty that would bring in China as well ...

Secretary of War Pete Hegseth’s recent announcement that the U.S. will resume testing nuclear weapons has alarmed some nuclear-arms experts. It shouldn’t. President Trump had already announced earlier ...

This transcript was prepared by a transcription service. This version may not be in its final form and may be updated. Speaker 1: From the opinion pages of the Wall Street Journal, this is Potomac ...