Newly surfaced footage appears to show a Soviet pilot dropping a live 244N tactical nuclear bomb from a single-seat Su-7B ...

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

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 ...

President Donald Trump speaks during a meeting with business leaders at the U.S. Ambassador's Residence in Tokyo on Oct. 28, 2025 Credit - Andrew Harnik—Getty Images Here's what we know about Trump's ...

President Trump has announced that the United States will resume nuclear bomb testing after a 33-year hiatus, marking a significant shift in American nuclear policy. This decision, made public on ...

Australia has said “all nations” - including the US - should refrain from nuclear weapons testing after Donald Trump ...

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 ...

Operation Crossroads was designed to show what atomic weapons could do to a fleet at anchor and whether warships could still ...

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

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 ...

Editor’s note: The Bulletin of the Atomic Scientists presents here, from its September 1946 issue, an eyewitness account of the first atomic bomb test in the Marshall Islands. In it, the author not ...