During one very unusual Cold War drill, a Soviet Su-7 Fitter attack jet delivered a live tactical nuclear weapon in an end-to ...

Add Yahoo as a preferred source to see more of our stories on Google. People perform for North Korean leader Kim Jong Un during a celebration for nuclear scientists and engineers who contributed to a ...

U.S. Army drone operators have successfully tested a new bunker-busting bomb designed for delivery via expendable low-cost ...

Nuclear weapons tests are among the most violent events humans can trigger, and that violence leaves fingerprints in the Earth, sea, air, and even in orbit. The physics of shock waves, sound, and ...

Communities and servicemen have long argued they were harmed by fallout from above-ground nuclear weapons tests – but the UK government has always denied this.

Senior Russian officials on Nov. 11 said they were still waiting for a White House explanation about what President Donald Trump meant he when said he had instructed the Pentagon to resume nuclear ...

The Trump administration’s renewed focus on nuclear issues after decades of neglect is welcome. But America is not prepared for a new nuclear test. President Donald Trump now wants the United States ...

North Korea says its weapons tests this week involved various new systems, including ballistic missiles armed with cluster-bomb warheads.

IF THE United States, Russia or any other nation goes ahead with a nuclear weapons test, others will follow, the head of the ...

America’s last nuclear detonation was nothing special. Smaller than the bomb that killed 73,000 people in Nagasaki, it exploded 1,397 feet below the Nevada desert. It shook the ground, created a ...

U.S. President Donald Trump with Chinese President Xi Jinping. China's nuclear expansion is on a trajectory to soon rival America's arsenal, the authors of this op-ed write. (AP/Shutterstock) In ...

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 ...