Weapons-grade plutonium can fuel nuclear reactors known as mixed oxide reactors, but none of these exist in the U.S.

The U.S. government is sitting on dozens of tons of weapons-grade plutonium. It's hoping startups can find a use for it.

At 5:29 a.m. on July 16, 1945, the desert near Alamogordo, New Mexico, briefly became a furnace unlike any on Earth’s surface. The world’s first nuclear bomb test vaporized steel, copper, cables, ...

According to the Institute for Science and International Security's analysis, facilities related to the weaponization of enriched uranium, such as development sites, were specifically targeted.

A revisit to the historic Trinity nuclear test reveals how the world's first atomic explosion in 1945 created a rare ...

In Ukraine and Iran, Russia is using civilian nuclear power plants to deter attacks by adversaries. This new form of nuclear signaling is not only dangerous but risks undermining the global nuclear ...

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 ...

In the many-sided conflict now underway against Iran (i.e., simultaneous and complementary operations led by the United States and Israel),[1] little concern has been expressed for a nuclear war. To ...