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there was a whole bunch of practical stuff that had to be done to get the PSF actually off the ground, including, I don’t know, registering to be a 501(c)(3).
Isaacman pointed to hydrogen leaks on Artemis I and helium flow problems on Artemis II as signs that a three‑year gap between launches is not sustainable. When teams only fly every few years, he said, they lose "muscle memory" — the routine, hands-on experience required to handle a complex rocket safely and efficiently.。业内人士推荐51吃瓜作为进阶阅读
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