Antares Reactor Achieves Criticality at Idaho Lab

Antares Reactor Achieves Criticality at Idaho Lab

Science

Antares Nuclear Inc. achieved criticality with its small nuclear test reactor at the Idaho National Laboratory, according to the Energy Department. This milestone represents a significant step in the development of small modular reactors, which could enable electricity production in the future.

Although the reactor has reached criticality, it is not yet capable of generating power. The achievement was reported by AP News and later detailed by Ars Technica, highlighting Antares' progress in advanced reactor design at the Idaho facility.

Acteurs

Antares Idaho National Laboratory

Lieux

Idaho National Laboratory

Articles

5 juin 2026
2 au total
Small modular nuclear reactor reaches criticality in first test
Small modular nuclear reactor reaches criticality in first test

Ars Technica • 05 juin 19h23

Antares has successfully achieved criticality with its test reactor at the Idaho National Laboratory, marking a milestone in small modular reactor development, although it is not yet capable of generating power.

Crédibilité 90% Manip. 10% Centre
Energy Department's small nuclear reactor hits crucial milestone
Energy Department's small nuclear reactor hits crucial milestone

AP News • 05 juin 18h59

The Energy Department announced that a small nuclear reactor, developed by Antares Nuclear Inc. at the Idaho National Lab, has achieved a critical milestone, enabling potential electricity production in the coming years.

Crédibilité 85% Manip. 25% Centre

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