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, ...

France tested nuclear weapons for 30 years in the Pacific. The people of French Polynesia bore the brunt of the testing.

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

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

Videos of Iran's missile tests circulating online highlight Tehran's defiance amid U.S., Israeli strikes and looming ...

VIENNA – The Comprehensive Nuclear-Test-Ban Treaty Organization (CTBTO) continues meaningful engagement with nine states that ...

A couple hundred nuclear energy industry officials, along with two western state governors, a Trump administration official and the head of the U.S. Nuclear Regulatory Commission, gathered Monday at ...

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

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