Chinese researchers have launched the world's first space experiment involving artificial embryo models to the Tiangong space station. This initiative, conducted by the Chinese Academy of Sciences' Institute of Zoology, aims to explore how microgravity and cosmic radiation impact early human development. The artificial embryos, grown from human stem cells, can self-organize and divide but are not capable of developing into fetuses, thus avoiding ethical concerns associated with real embryos. Project leader Yu Leqian explained that the goal is to compare the development of these models in space with those on Earth to identify factors influencing embryonic growth in a space environment. The research addresses fundamental questions about human survival and reproduction in space, particularly as plans for long-term habitation in orbit progress. By understanding how microgravity affects early development, researchers hope to develop strategies to counteract potential negative effects on human reproduction during extended space missions.