Physicists warn that deuterium-tritium fusion reactors could enable secret production of fissile materials, prompting calls ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. The discovery of nuclear fission in ...

The U.S. Department of Energy (DOE) has reportedly decided that weapon-grade plutonium from the Cold War-era stockpile could be turned into nuclear reactor fuel. The DOE will give American companies ...

The clean-up of a decommissioned US nuclear weapons plant has unearthed one of the oldest known samples of man-made plutonium. Workers found roughly half a gram of weapons-grade plutonium-239 (Pu-239) ...

Plutonium-239 found inside a broken, rusty safe has been shown to be of historic significance: dating from December 1944 it is the very first weapons-grade plutonium refined at the site, or anywhere ...

After 50 years of searching, physicists have spotted the fingerprint of radioactive plutonium, revealing the secrets of this complex molecule behind nuclear weapons. Subscribe to read this story ...

Opinions differ on whether the half ton of weapons-grade plutonium secretly shipped by the U.S. government to the Nevada National Security Site could impact residents’ health and the environment.

Thorium reactors have long been proposed as a cleaner, safer alternative to conventional nuclear energy, and now a new Russian study has added another potential benefit to the mix. Scientists from ...