The design and legacy of Experimental Breeder Reactor-II

In June 2025, the Department of Energy announced the Reactor Pilot Program, an authorization pathway that allowed reactor developers to partner with the DOE to get first-of-a-kind (FOAK)...

For just over a year, President Trump’s Executive Order 14301, “Reforming Nuclear Reactor Testing at the Department of Energy,” has loomed large because it pegged a stretch goal to a...

In 2019, a familiar landmark at Idaho National Laboratory was scheduled for demolition. Though striking for both its physical presence and its significance to nuclear history, the containment...

El Segundo, Calif.–based start-up Valar Atomics has taken its Ward 250 test reactor critical at the Utah San Rafael Energy Lab (USREL), becoming the second company in the Department of...

On Thursday, Oklo announced that the Department of Energy’s Idaho Operations Office had approved the preliminary documented safety analysis (PDSA) for the company’s first deployment of its...

On June 1 at the American Nuclear Society’s Annual Conference in Denver, Colo., a team from Idaho National Laboratory presented a session titled “Lessons Learned from MARVEL Reactor...

Scientists at Idaho National Laboratory have discovered that plutonium hexaboride (PuB6) displays a type of unusual quantum property called a topological Kondo insulating state. Materials with...

Two companies specializing in ultrasonic nondestructive testing and structural health monitoring are to advance to the final phase of a selection process to demonstrate acoustic emission...