Normally, materials expand when heated. Higher temperatures cause atoms to vibrate, bounce around and take up a larger volume. However, for one specific phase of plutonium—called delta-plutonium ...

A plan to dilute and dispose of excess plutonium dating back to the Cold War was frozen by an executive order President Donald Trump issued late last month. Instead, the order directs Energy ...

This is the second story in a series about Sentinel, the Air Force’s nuclear missile modernization project. Other stories touch on the challenges in the surrounding communities near Sentinel ...

By Timothy Gardner WASHINGTON (Reuters) -The Trump administration plans to make available about 20 metric tons of Cold War-era plutonium from dismantled nuclear warheads to U.S. power companies as ...

Nuclear waste and radioactive plutonium would be assessed as a fuel for reactors under a draft executive order being considered by the administration of President Donald Trump on expanding nuclear ...

A light-water reactor could provide more weapons-grade plutonium, abetting the North Korean leader Kim Jong-un’s vow to expand his nuclear arsenal.

Normally, materials expand when heated. Higher temperatures cause atoms to vibrate, bounce around and take up a larger volume. However, for one specific phase of plutonium—called delta-plutonium ...

By Timothy Gardner WASHINGTON (Reuters) -The Trump administration plans to make available about 20 metric tons of Cold War-era plutonium from dismantled nuclear warheads to U.S. power companies as ...

The Trump administration plans to make available about 20 metric tons of Cold War-era plutonium from dismantled nuclear warheads to U.S. power companies as a potential fuel for reactors, according ...