During the Cold War, the United States carried out terrifying classified experiments involving nuclear explosions in space, ...

There has not been a major (or minor) nuclear explosion since the 1960s. This is almost entirely because the Treaty on the Non-Proliferation of Nuclear Weapons (NPT) was opened for signature on July 1 ...

Earlier this month, the New START treaty, a strategic-arms reduction agreement between Russia and the United States to limit their nuclear arsenal, expired. That accord was the last in a series of ...

The only well-exposed color image of the Trinity test. (Jack W. Aeby/Manhattan Project/Public Domain) We don't always get to pinpoint the exact moment the world changes. But when the New Mexico dawn ...

Oct. 1 (UPI) --Chinese military researchers recently reported that multiple nuclear strikes on a single target will produce greater damage than a single blast from a larger warhead to destroy hard ...

President Donald Trump has called for the United States to test its nuclear weapons for the first time in three decades. But Trump’s statements about testing — in particular, whether other nations are ...