NASA's Artemis Program Hits Major Roadblock as Engine Issues Plague Moon Mission A major setback has struck NASA's ambitious Artemis program, which aims to return humans to the lunar surface by 2025. According to sources, the program has hit a significant roadblock due to engine issues plaguing the Space Launch System (SLS) rocket, a crucial component of the mission. The problems have raised concerns about the program's timeline and the possibility of further delays. As the Artemis program seeks to establish a sustainable presence on the Moon, the recent setbacks have sparked debate among experts about the feasibility of meeting the 2025 deadline.