India, June 8 -- A small nuclear reactor developed by a private US company has achieved first criticality, a stepping stone ...

Antares Nuclear's Mark-0 microreactor achieves criticality at Idaho National Laboratory, the first advanced reactor to do so ...

Antares Nuclear achieved initial criticality of its Mark-0 reactor at Idaho National Laboratory earlier this week, making it ...

China is leading the pack when it comes to developing nuclear power, and its 'artificial sun' is set to pave the way for many ...

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 Mark-0 reactor is the first of several advanced nuclear reactors in the DOE's pilot reactor program expected to achieve criticality by July 4.

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 achieves self-sustaining chain reaction for the first time, enabling it to produce energy in a controlled manner.

Antares Nuclear's Mark-0 reactor reached first criticality, marking the first privately developed non-light-water reactor in the U.S. to achieve this feat in over 40 years.