NASA tests AI medic for astronauts too far from Earth to call a doctor

- NASA is testing an AI-powered medical diagnostic system called "Medic" for long-duration space missions (e.g., Mars), where real-time communication with Earth is impossible due to signal delays of up to 20 minutes each way. - The system uses large language models and onboard sensors to guide astronauts through diagnosis and treatment of common medical issues (injuries, infections, dental problems) without ground support. - This matters because deep-space missions will have no doctor on board and no ability to phone home for help — crews must be medically self-sufficient. - The article reports on simulated trials aboard the ISS analog (e.g., HERA) and describes how the AI uses pre-loaded medical data, voice interaction, and sensor input to triage and treat. - Key prior context: NASA has been developing autonomous medical AI for years; the challenge is ensuring reliability, safety, and astronaut trust when no human expert is reachable.