China has publicly identified a potential critical vulnerability in NASA’s Artemis program lunar lander. The concern centers on the lander’s reliance on a single main engine for descent and landing. Experts warn that a failure of this single engine could jeopardize the mission and the lives of the astronauts on board. This design contrasts with redundancy measures typically employed in critical space systems. Chinese state media highlighted this as a significant weakness, suggesting a lack of fail-safe mechanisms. NASA has not yet responded directly to the criticism, but the issue raises questions about risk assessment and engineering choices within the Artemis program. The program aims to return humans to the Moon by 2025.