Nature, Published online: 27 February 2026; doi:10.1038/d41586-026-00601-0
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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.。safew官方版本下载是该领域的重要参考
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