WEST PALM BEACH, Fla. — New tests of the U.S. nuclear weapons system ordered up by President Donald Trump will not include nuclear explosions, Energy Secretary Chris Wright said Sunday. It was the ...

U.S. Energy Secretary Chris Wright said he expects U.S. nuclear-weapons testing sought by President Donald Trump to stop short of actual atomic bomb explosions for now. “I think the tests we’re ...

Russia stunned the world by claiming a successful test of Poseidon, a nuclear-powered, nuclear-armed underwater drone-torpedo described by the Kremlin as an 'unstoppable' new weapon capable of ...

The U.S. nuclear weapon test Bravo (yield 15 Mt) on Bikini Atoll in the Marshall Islands, Mar. 1, 1954. Nowadays, nuclear “tests” are done via computers or laboratory scale experiments and do not ...