Nuclear Power Breakthrough: The U.S. Energy Department says Antares Nuclear’s Mark-O microreactor hit criticality at Idaho National Laboratory, a key step toward electricity generation and faster reactor testing. AI Safety Push: Anthropic is urging a global “pause” on frontier AI development, warning models could reach recursive self-improvement sooner than institutions can handle. Energy + Data Centers: Google and Intersect Power broke ground on a Texas Meitner Energy Center that pairs 1GW+ wind/solar/storage with a colocated data center using advanced air cooling to limit water use. Defense Tech + Access: The House Armed Services Committee advanced a right-to-repair style amendment that would default Pentagon “government-purpose rights” for technical data and software unless contractors justify tighter protections. Healthcare Tech + Policy: Kentucky expanded medical cannabis eligibility via an executive order, while Australia’s health and med-tech groups warn new R&D tax refund limits could slow innovation. Biotech Funding/Trials: Shattuck Labs will share Phase 1 data for its DR3-blocking antibody SL-325, and Rivus Pharmaceuticals released preclinical results for its muscle-preserving oral GLP-1 RV-8451.