最令航天业担忧的是钇供应紧张。钇是高温防护涂层中的关键成分，可防止发动机和涡轮在高温下“熔化”，一旦无法定期施涂相关涂层，发动机便无法正常服役。
With the rocket now on launchpad 39B, the Artemis team is working around the clock to get it ready for lift off.，更多细节参见搜狗输入法2026
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Neil Sedaka, singer of Breaking Up Is Hard To Do, dies at 86
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