The allegations were leveled by U.S. officials late last week. Arms control experts worry that norms against nuclear testing ...

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 ...

President Donald Trump has directed the Pentagon to resume testing nuclear weapons after a 33-year pause, announcing the move on social media just ahead of meeting Chinese President Xi Jinping in ...

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 ...

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 ...

Jay Cowan still worries about the Rulison blast’s proximity to the Colorado River and expresses disbelief at the 107 days that radioactive gas was burned in order to test whether the radionuclides ...

Add Yahoo as a preferred source to see more of our stories on Google. President Donald Trump's order late Wednesday night for the U.S. to resume nuclear weapons tests has confounded officials and ...

President Donald Trump says the U.S. plans to restart nuclear weapons testing for the first time in more than 30 years, a move experts fear could raise global tensions and disrupt the nuclear balance ...

This special report focuses on India's sharp reaction to former U.S. President Donald Trump's claim that Pakistan is secretly testing nuclear weapons. Ministry of External Affairs Spokesperson Randhir ...

President Donald Trump’s announcement that the United States will resume nuclear weapons testing for the first time in more than three decades has sent shockwaves through both Washington and world ...