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.

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 ...

Antares Nuclear's microreactor reached criticality, a key step toward producing electricity by 2027. The company is the first private firm to achieve the milestone under a Trump administration program ...

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 ...

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.

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The scientific community has a plan for achieving fusion power. It involves getting a better understanding of how to control fusion in a tokamak-style reactor using the currently under construction ...