格隆汇3月20日｜美国国家航空暨太空总署(NASA)官员表示，波音公司星际客机(Starliner)太空舱去年出现问题，导致两名航天员滞留在国际太空站，指星际客机太空舱可能需要进行第三次无人试飞才能再次搭载航天员。星际客机首批航天员已于周二乘坐马斯克旗下SpaceX的太空舱返回地球。波音计划今年夏天进行星际客机关键地面测试。

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