The US Army wants to make it easier for defense firms to get access to military test ranges to experiment with critical ...

In a late-June meeting with more than a dozen of the nation’s top defense technology firms, Defense Secretary Pete Hegseth ...

Add Yahoo as a preferred source to see more of our stories on Google. Resuming full testing of nuclear weapons — as President Donald Trump called for last week — would be unnecessary, costly, ...

The testing of nuclear weapons is suddenly a major topic of discussion after being largely dormant for three decades. Last week, Russia tested a nuclear-powered missile, but did not detonate an actual ...

President Trump's comments about restarting weapons tests are not likely to lead to mushroom-cloud explosions over the New Mexico desert or seismic shaking underground in Nevada, according to the ...

Confusion and ambiguity are dangerous in nuclear brinksmanship. President Donald Trump spread both on Wednesday when he posted on Truth Social an error-filled and unclear order for the U.S. to ...

Nov. 6 (UPI) --President Donald Trump's calls to ramp up nuclear weapons testing last week have put nuclear watchdogs and world leaders on alert while experts say the United States has little to gain.

Pilots with the 123d Fighter Squadron, 142nd Fighter Wing dropped 500-pound BDU-50s and 2,000-pound BDU-56s test munitions in May at Mountain Home Air Force Base.

Minutes before walking into a high-stakes meeting with Chinese President Xi Jinping this past week, President Donald Trump announced what could prove to be a stunning shift in American nuclear policy.

MAJURO, MARSHALL ISLANDS — Lemeyo Abon learned about snow from the movies played on projectors by visiting American sailors. But living on Rongelap — a remote tropical atoll in the central Pacific ...

Discussing nuclear weapons earlier this month, Chinese Foreign Ministry spokesperson Mao Ning said the nation “is committed to peaceful development, follows a policy of ‘no first use’ of nuclear ...