An ally of newly-minted president Donald Trump's is arguing that the United States should resume nuclear weapons testing to ...

A program to compensate uranium miners and people who lived downwind of nuclear bomb testing then developed certain cancers ...

The number of Chinese operational nuclear warheads has increased by more than 100 to over 600, the Pentagon reported.

A thousand feet beneath the desert, the United States conducts experiments to verify that its weapons work. But some fear a ...

Russia has hinted that it may resume nuclear weapons testing in another veiled threat against the West. If it did, the world would know about it. Gone are the days of massive fireball explosions ...

The Soviet Union detonated its first atomic bomb, known in the West as Joe-1, on Aug. 29, 1949, at Semipalatinsk Test Site, in Kazakhstan. The Soviets called their first atomic test "First Lightning." ...

with the successful testing of the most powerful weapon known to man. "Gadget," the first atomic bomb — a 6-foot sphere with a grapefruit-sized Plutonium core, covered in cables — was born out ...