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![WSJbusiness Avatar](https://lunarcrush.com/gi/w:24/cr:twitter::28140646.png) WSJ Business News [@WSJbusiness](/creator/twitter/WSJbusiness) on x 1.8M followers
Created: 2025-07-21 15:42:18 UTC

Some NASA employees fear changes rippling through the agency will undermine safety during human space missions, putting that concern in a new letter to the agency’s acting leader

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