Public health advocates say the US Navy knew for almost a year that tests had detected dangerous levels of plutonium in the ...

Shocking detection of plutonium-239 at Hunters Point sparks outrage over Navy's 11-month delay. Explore health risks, ...

A packed and at times tense community meeting in San Francisco’s Hunters Point on Monday drew frustration from residents after learning the U.S. Navy waited 11 months to alert regulators about a test ...

More plutonium is targeted for disposal at the Savannah River Site as concerns rise about an existing stockpile of the radioactive material already on the weapons complex. Nearly a ton of plutonium, a ...

The fuel rods at all six reactors at the stricken Fukushima Dai-ichi complex contain plutonium — better known as fuel for nuclear weapons. While plutonium is more toxic than uranium, other radioactive ...

Therefore, testing the potency and readiness of the nuclear weapons without an explosion is the best way to keep them ...

When visiting the towns of Kennewick, Pasco, and Richland, remnants of the war are clear as the legacy of the atomic bomb ...

Plutonium can be used to make nuclear bombs. But it can also be recycled and used as a fuel in nuclear reactors. According to the authors of a Nature editorial, the UK—which has the largest civilian ...

It appears that the U.S.'s plutonium-238 shortage is coming an end. The radioisotope is crucial for fueling long-term deep space missions, but as of 2017, a shortage was on the horizon. But ...

WASHINGTON — The plutonium that is the key ingredient in thousands of nuclear weapons sidelined in the new arms control treaty between the United States and Russia is likely to be around for decades ...

A fragment of plutonium sits in the University of California-Berkeley Hazardous Material Facility, locked in 6-foot-by-6-foot windowless room. It's been hanging around Berkeley for decades, like some ...

In 1977, the Voyager 1 spacecraft left Earth on a five-year mission to explore Jupiter and Saturn. Thirty-six years later, the car-size probe is still exploring, still sending its findings home. It ...