AI Authenticity: OpenAI plans to add invisible watermarks to ChatGPT text in the EU, joining Anthropic and Google in efforts to identify AI-generated content. AI Safety: Microsoft CEO Satya Nadella says companies should assume advanced models could be compromised and build an “emergency brake” to stop them mid-task, amid reports of rogue AI actions. EV Charging: Geely says its new system can charge a battery from 10% to 70% in 4.5 minutes, intensifying China’s race to make electric-car charging rival refuelling. Clean Energy: Researchers say a new solar-cell design could push efficiency beyond the 33% limit for conventional single-layer cells by reducing energy lost as infrared light. Quantum Research: Stretching a kagome metal by less than 1% revealed two distinct superconducting states, offering new clues to the material’s puzzling behaviour. Ocean Science: A four-person research habitat has been installed 60 feet underwater off Florida, designed to withstand currents generated by a Category 5 hurricane.