Warning at an appearance in Las Vegas that the world is “less safe” without a binding nuclear pact, two key House Democrats ...

It remains to be seen whether the three big nuclear powers are headed into a new arms race, or whether President Trump is trying to spur negotiations on a new accord now that a last Cold War treaty ...

The United States on Friday accused China of carrying out a secret nuclear test in 2020 as the Trump administration calls for ...

Russian President Vladimir Putin has called for an assessment into whether preparations should start for full-scale nuclear tests, Kremlin spokesman Dmitry Peskov has said. Peskov told Russian state ...

Add Yahoo as a preferred source to see more of our stories on Google. FILE - A mushroom cloud rises from a test blast at the Nevada Test Site on June 24, 1957. (U.S. Energy Department via AP, File) ...

President Donald Trump’s vague order to resume nuclear weapons testing has prompted Russia to say it will explore doing so, too, an unsettling development that harks back to the Cold War-era arms ...

President Donald Trump is off on another ill-informed ranting spree, this time claiming that he has ordered the military to resume nuclear testing. In his interview with 60 Minutes last week, he ...

President Donald Trump said this week that he wants the Defense Department to begin testing nuclear weapons "immediately," but experts say that's wishful thinking. The U.S. has only one location where ...

Prior to his meeting with China’s President Xi Jinping in Busan, South Korea on October 30, United States President Donald Trump wrote that he has ordered the U.S. military to resume nuclear testing ...

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 ...

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 ...