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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.
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2026年1月，中央党校，省部级主要领导干部学习贯彻党的二十届四中全会精神专题研讨班开班。
Author(s): Jean-Michel Bergheau, Jean-Baptiste Leblond
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The Starship upper stage separated from its Super Heavy booster nearly four minutes into flight as planned.