China Launches “Artificial Human Embryos” into Space
China has sent its first “artificial human embryos” to the Tiangong space station. This experiment aims to determine how microgravity conditions and space radiation affect human reproductive functions.
The results of this study are crucial for the future, as they will determine humanity’s ability to establish independent, self-sufficient colonies on the Moon and Mars. The delivery of biological material was successfully completed as part of the Tianzhou-10 cargo mission.
The effects of weightlessness on living organisms . Scientists have been conducting experiments for years studying reproductive functions under zero-gravity conditions across various species. In addition to human stem cells, mouse and zebrafish embryos have also been sent to China’s Tiangong space station.
Biologists have previously conducted similar experiments on the International Space Station, sending frozen mouse embryos there. Tests showed that the cells could develop in the early stages under zero-gravity conditions, but the survival and subsequent growth of animals born in space still raises many questions in the scientific community.
Artificial embryos are specialized structures created from living human stem cells. They can divide and develop like normal embryos, but they cannot develop into fully-fledged fetuses or children. This approach allows scientists to conduct vital tests while avoiding the serious ethical issues that might arise from using real human cells.
For the experiment, two models were selected that simulated critical developmental stages: the period when the embryo attaches to the uterine wall and the beginning of the formation of future organs and tissues.
Samples were cultured in space for five days, then frozen to be returned to Earth for detailed analysis. Simultaneously, the same samples were cultured in a ground-based laboratory to serve as a control group for comparison.
Study co-author Leqian Yu explained : “By comparing the development of space and terrestrial samples, we hope to identify factors influencing early human embryonic development in the space environment and address the risks and challenges humans may face during long-term space exploration.”
Alien children
The ability to reproduce outside of Earth is a key requirement for humanity’s long-term survival on other planets. Experts warn that the possibility of conception in space is increasing with the development of space tourism. However, this process faces significant obstacles.
Cosmic radiation can damage DNA, and a zero-gravity environment can disrupt natural biological processes. Studies show that zero gravity disorients sperm cells, reducing the chances of fertilization, and that stem cells age significantly faster in space.
Studying the earliest stages of development is crucial. Leqian Yu noted that this period, when organs form and the body’s axis takes shape, is a critical timeframe.
Given the complexity of natural fertilization in zero gravity, scientists suggest that humanity may have to switch entirely to artificial insemination technologies to have children on orbital stations or other planets.
Source : China Launches “Artificial Human Embryos” into Space
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