Valor Atomics may not be the first startup to split an atom, but it did achieve cold criticality—a self-sustaining nuclear ...

A Trump administration pilot program aims for three nuclear startups to reach a key milestone by July 4, 2026. Valar Atomics ...

A small US nuclear startup has quietly crossed a threshold that most young fission companies only talk about, achieving a ...

In the deserts of Nevada, a US startup has achieved cold criticality, a bold step in the development of a functional ...

The startup’s achievement is impressive but underscores the quiet chaos of the nuclear industry following a series of ...

Energy startup First American Nuclear—looking to build its first small modular reactor, or SMR—and the Braun administration on Tuesday announced sweeping plans to move the company’s headquarters, ...

Fusion power's big advantages would be that it’s a virtually limitless source of electricity that doesn’t add carbon to the ...

Georgia Power declared on Friday that it will start loading fuel into the reactor core of Plant Vogtle Unit 4. Advocates say this marks a pivotal milestone toward startup and commercial operation of ...

Finnish utility Teollisuuden Voima Oyj has today received permission from the country's Radiation and Nuclear Safety Authority to bring the Olkiluoto 3 EPR to first criticality and conduct low-power ...

The impacts of science from HFIR include the development of medical isotopes and elements for the periodic table, fuels and ...