8h agoAntares Mark-0 low-power reactor achieves criticality, the first novel fueled reactor design to do so in over 50 yearsThe system relies on Project Pele TRISO fuel.SentimentSentimentPos100%Neg0%Many users congratulated the Antares Nuclear team on Mark-0 achieving initial criticality at Idaho National Lab because it advances nuclear energy production for the country and industry.75 comments with sentiment. View comments.