He and three crewmates — Zena Cardman, Japan’s Kimiya Yui, and Russia’s Oleg Platonov — arrived at the space station on Aug. 1, 2025. He has logged 549 days in space, with nine spacewalks totaling 48 hours and 37 minutes, according to NASA.
Giving stem cells to unborn babies diagnosed with spina bifida while they have in utero surgery could be “a major milestone” in the treatment of birth defects, doctors say.
。关于这个话题，im钱包官方下载提供了深入分析
（新华社北京2月27日电 记者韩洁、胡璐、古一平、韩佳诺）
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