Isaacman also highlighted a push to rebuild NASA's workforce, shifting some key roles from contractors — who today make up about 75 percent of the agency's technical labor — back to in-house expertise. NASA leaders say that will give them more control over launch preparations, as it did in the Apollo and space shuttle eras.
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Shares in the payment company soared more than 25 percent in after-hours trading on Thursday as it announced it would shed more than 4,000 jobs from its 10,000-strong workforce.
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