It’s widely known that a smoke detector is a good ionizing radiation source, as they contain a small amount of americium-241, a side product of nuclear reactors. But what about other sources? [Carl ...

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 ...

(CNN) — Idaho State University has been fined after it lost track of a small amount of plutonium 239, a substance used to make nuclear weapons. University Officials say the sample, missing since 2003, ...

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 ...

Update: Since publication, Jon Schwantes has discovered that a microgram sample of plutonium produced in 1942 by Glen Seaborg’s group at the University of California in Berkeley is also ...

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.

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 ...

One of the oldest known samples of plutonium has been dug up from a waste trench in Hanford, Wash., near the now-decommissioned nuclear production site along the Columbia River. During the process of ...

Devoted fans can wait hours on the red carpet to get their favourite movie star’s autograph, but that’s nothing compared to acquiring the signature of plutonium-239. After 50 years of trying, ...

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) ...

(NewsNation) — Public health officials in San Francisco say that immediate action isn’t necessary to protect public safety following the detection of plutonium in the city, as reported by local outlet ...