A strong 5.2 quake rattling the ground near Iran’s Bushehr nuclear plant would be alarming in any week. Coming just as Washington and Tehran edge toward a direct clash over nuclear sites, it has supercharged speculation that the shaking was not natural at all but the product of a covert nuclear test.

The post-war international order may be tearing apart at the seams and international law is increasingly looking like a polite fiction, but we did just pass one notable milestone of global peace and stability: As of this month, the world has gone the longest time without a nuclear explosion since the atomic era began more than 80 years ago.

US wants Beijing to join a revised nuclear weapons treaty after expiration of a previous accord between US and Russia.

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 talking about right now are system tests,” Wright said ...

WEST PALM BEACH, Fla. (AP) — 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 first clarity from the Trump administration since ...

Was President Trump’s recent directive to resume U.S. nuclear testing — after a hiatus of 33 years — an actual policy decision? Or was it a political stunt to project toughness? His surprise announcement stirred Cold War echoes and revived the old ...

Yet January 14th marked the longest period humankind has gone without one or another part of the whole exploding one of these deadly weapons, stretching back to the last North Korean test in September, 2017. All other nuclear armed states conducted their last nuclear tests between 1990 and 1998 when Pakistan ceased its nuclear testing.