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.
02:14, 28 февраля 2026Мир
，更多细节参见搜狗输入法2026
turbulent economic times, the branch became responsible for tracking the balance
theguardian.com