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.
A Court of Thorns and Roses 7
，更多细节参见新收录的资料
On Monday, crude oil surged above $100 a barrel on concerns about potential shortages due to prolonged disruption to Middle East energy supplies.
Юлия Сычева (корреспондент)
Nature, Published online: 04 March 2026; doi:10.1038/s41586-026-10218-y