San Francisco officials say they weren’t told that the Navy detected plutonium at the Hunters Point Shipyard for 11 months.

The San Francisco Health Department is sounding the alarm over high levels of radioactive "plutonium 239" detected in the air in Hunters Point.

Foreign Ministry Spokeswoman Maria Zakharova characterized US actions as destructive, noting they have contributed to the worsening global military-political climate ...

The president’s ambiguity on nuclear testing is worrisome not only because America’s public can’t know what he means, but ...

If I mention nuclear reactor accidents, you’d probably think of Three Mile Island, Fukushima, or maybe Chernobyl (or, now, Chornobyl). But there have been others that, for whatever reason, ...

Once a government-led pursuit, nuclear fusion is now a private-capital race, much of it financed by the same people building ...

By Ben Aris in Berlin Russian President Vladimir Putin has formally withdrawn from a key arms control agreement with the United States governing the disposal of weapons-grade plutonium, as the few ...

Russian President Vladimir Putin has done something that is sure to shock US President Donald Trump. What is the whole matter ...

This article examines emerging materials in space science, focusing on advancements that enhance performance and ...

The lab where Oppenheimer developed the atomic bomb is the linchpin in the United States’ effort to modernize its nuclear ...

The National Nuclear Security Administration will submit a cradle to grave plan for hazardous waste generated by plutonium ...

Russian President Vladimir Putin signed a law formally withdrawing from the Plutonium Management and Disposition Agreement ...