Space medicine

Illustration of the Artemis II spacecraft's trajectory and the lack of radiation protection for most of the trajectory. A. Fisher/Science

Artemis II returns humans to lunar orbit – and cosmic radiation becomes the main health challenge

Space and astronomy, space medicine, cosmic radiation, Artemis II, NASA, Orion, space flight safety, personalized medicine
The rescue of Mike Pink, one of the four astronauts aboard CREW DRAGON, January 15, 2026. From NASA Television

Crew-11 returned to Earth more than a month earlier than planned due to a “medical concern”

NASA announced last week that it was bringing the return forward due to a “medical concern” with one of the crew members, which the agency said could be better diagnosed on the ground. The agency stressed that the condition was stable, but refrained from