China has concluded the Earth-Star 3 biomedical experiment, aimed at developing health protection measures for long-term space missions and future lunar expeditions. The study focused on mitigating the negative effects of microgravity and reduced gravity on the musculoskeletal and cardiovascular systems.
The experiment, which began in May, involved volunteers remaining in bed for 15 or 30 days. To simulate weightlessness, participants were positioned with their heads tilted downward at a 6-degree angle. Some subjects performed daily physical exercises to counteract the lack of physical load.
Researchers tested two protection protocols: one for year-long stays on China's orbital station and another for lunar missions. Both programs demonstrated effectiveness in maintaining physical health. Data collected will support upcoming missions, including a planned year-long stay for a Shenzhou-23 crew member.
Participants received compensation ranging from ¥20 000 to ¥70 000 for completing the program. The China Astronaut Research and Training Center has previously conducted similar studies lasting 15, 60, and 90 days.
