A nuclear start-up working on mini-reactors for the US military has announced a crucial first step in producing a model that could be deployed at bases and other strategic sites within a few years.

The milestone occurs when a nuclear reactor achieves a self-sustaining chain reaction capable of producing a steady release ...

The Trump administration announced a small modular nuclear reactor reached a critical milestone Thursday.

The executive order directed the Department of Energy to have three different reactor designs reach criticality in a bit over ...

Antares Nuclear Inc.'s Mark-0—a sodium heat-pipe-cooled microreactor fueled by high-assay low-enriched uranium (HALEU) ...

Antares Nuclear's Mark-0 reactor has completed a zero-power fuelled criticality demonstration, becoming the first reactor to ...

The department is looking to meet a White House-set deadline of having three reactors sustain fission reactions by July 4 of this year. The first advanced nuclear reactor has reached criticality as ...

A new small nuclear reactor backed by the US government achieved first criticality, making it the first such feat by a ...

The first privately developed U.S. nuclear reactor in over 40 years achieves criticality, marking a historic milestone for ...

The department of energy described the milestone as 'rebirth of America’s nuclear industry' and a 'historic moment' for US ...

Antares, a nuclear start-up, achieves a breakthrough with its Mark-0 prototype, paving the way for mini-reactors at US ...