Small modular nuclear reactor reaches criticality in first test
The reactor, from a startup called Antares, isn't ready to generate power yet.
What happened?
The reactor, from a startup called Antares, isn't ready to generate power yet.
Story details
The reactor, from a startup called Antares, isn't ready to generate power yet.
Why it matters
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Original source
https://arstechnica.com/science/2026/06/first-us-test-of-modular-reactor-reaches-criticality/