空间站实验样品返回，人工胚胎交付研究
The Shenzhou-21 return capsule has safely brought back a set of science experiments from China’s space station. Among the most important samples are artificial human embryos. These were handed over to researchers soon after landing in Inner Mongolia. It is the first time such biological specimens have been returned from the station.
The embryos were created in a lab and sent into orbit. Scientists wanted to see how microgravity affects early human development. They will now compare them with embryos grown on Earth. Other returned samples include plant seeds, materials, and microbes. These tests aim to improve medicine, food production, and spacecraft materials.
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