A grapefruit-sized sphere of plutonium holds enough energy to wipe a city off the map. But how does that actually work? From chain reactions to hydrogen bombs, we’re breaking down the terrifying ...

This allows surplus plutonium to serve as a temporary fuel source while new uranium and recycling supplies scale up. OKLO ...

A secret Cold War operation to spy on China ended with a plutonium-powered device abandoned on a Himalayan peak, triggering ...

In a shocking revelation on 27 November 2025, airborne plutonium was detected at the former Hunters Point Naval Shipyard in San Francisco, sparking Navy cover-up claims amid health risks to the ...

Public health officials in San Francisco said no “immediate action” is needed to protect public safety after airborne plutonium was detected in the city. In 2024, the radioactive substance Pu-239 was ...

Local health officials are asking the U.S. Navy why they were not warned about elevated radiation levels detected in the city last year. San Francisco Health Officer Dr. Susan Philip said plutonium ...

The San Francisco Health Department is sounding the alarm over high levels of radioactive plutonium-239 (Pu-239) detected in the air in Hunters Point Naval Shipyard. Plutonium 239 is a radioactive ...

"If there were adults in the room and I could trust the federal government to impose the right standards, it wouldn't be such a great concern, but it just doesn't seem feasible." In one of his wildest ...

What we know so far: The United States is opening part of its Cold War – era plutonium stockpile to help reduce reliance on Russian uranium and speed development of next-generation nuclear reactors.

US to Announce Recipients of Plutonium for Reactors by Year-End By Timothy Gardner WASHINGTON (Reuters) -The U.S. Department of Energy expects to begin announcing by December 31 which companies will ...

President Trump’s proposal to repurpose the U.S. plutonium stockpile to fuel nuclear reactors resulted in a May 23, 2025, executive order directing the Department of Energy (DOE) to revisit disposal ...

The Department of Energy is accelerating construction of the new facility, aiming to produce 50 plutonium pits annually by 2030. While production ramps up, concerns remain about existing radioactive ...