The U.S. Navy carried out four scheduled unarmed missile tests of the Trident II D5LE off the coast of Florida last week.

The U.S. and China possess the world's second- and third-largest nuclear arsenals, with 5,177 and 600 warheads, respectively, ...

More than 2,000 nuclear weapons have been tested worldwide to date. The test sites remain contaminated, and many residents are ill. Here is one example from the South Pacific.

The Nanjing Army Engineering University reported a successful test of a triple-nuclear strike. Bunkers can be destroyed in ...

America’s Trident D5 missiles represent a bedrock of America’s national defense—meaning that they must occasionally be tested ...

Iran has likely carried out an undeclared missile test at its Imam Khomeini Spaceport, according to satellite photos analyzed ...

Valar Atomics and Utah San Rafael Energy Lab have begun construction of a high-temperature gas-cooled test reactor under ...

Dive into a fascinating chapter of U.S. military science: the Nuclear Effects Branch at White Sands. From about 1974 to 1984, ...

The missile was launched from a specially designed rail-based mobile launcher, providing cross-country mobility.

BBC Breakfast talks to nuclear test veterans who are campaigning for recognition from the British government, after suffering ...

Brunswick Nuclear Plant's outdoor warning sirens will be tested on the morning of Oct. 8 for up to three minutes between 10 a ...

Spacecraft have used a plutonium isotope to stay afloat for decades, but another isotope could last even longer.