Artemis II astronauts face deep space radiation as NASA tracks health in unprecedented detail

Sensors and blood samples will reveal how radiation hits

Artemis II will send astronauts farther than ever, placing them in deep space radiation. NASA is monitoring their health with advanced sensors and collecting biological samples to track how radiation affects the body and mind. The findings are expected to shape safety standards for future Moon bases and Mars missions, where long-duration exposure will be a major challenge.