A California nuclear technology company has used a next-generation reactor prototype to supply electricity ...

US-based advanced nuclear fuel developer Lightbridge has successfully removed its first irradiated fuel samples ...

Just over a year ago, the Trump Administration issued an executive order meant to accelerate the development of nuclear power in the US. While an entire startup ecosystem has developed around the use ...

They’re not exactly IFRs but France built and operated the Phenix and Superphenix fast breeder reactor with similar goals as the IFR. Then there are the Monju sodium cooled fast breeder reactor in ...

IDAHO FALLS, Idaho (KIFI) — Following an afternoon briefing in the Oval Office where Energy Secretary Chris Wright promised a major announcement before the "sun goes down," the Department of Energy ...

Nuclear energy in the West took another step forward as the first privately developed, non-light-water reactor to go critical in the United States in more than 40 years reached a major milestone when ...

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WASHINGTON (AP) — The Energy Department says a small nuclear reactor under development at a national lab has reached a crucial milestone that could allow it to produce electricity within a few years.

Antares Nuclear, Inc. announced Thursday that its Mark-0 microreactor achieved criticality at Idaho National Laboratory, becoming the first advanced reactor to reach the milestone under a U.S.

WASHINGTON — Antares Nuclear completed a zero-power criticality test for its Mark-0 demonstrator reactor at Idaho National Laboratory on June 4, 2026. This milestone advances the deployment of ...

Antares has achieved a key milestone in the development of its Mark-0 microreactor, becoming the first private company to bring an advanced reactor to criticality under the U.S. Department of Energy’s ...