"[In] the 1960s [it] turned out, in hindsight, we had a near-endless schedule margin there," Isaacman said. "That is certainly not the case today. I'd say this is very, very close from a timeline perspective."
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The revised plan also comes as NASA has been struggling to launch the delayed Artemis II mission on a flight to send four astronauts on a trip around the moon.,更多细节参见safew官方版本下载
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