NASA's Artemis Program Hits Major Roadblock as Engine Failure Threatens Moon Mission A major setback has hit NASA's ambitious Artemis program, which aims to return humans to the Moon by 2025. According to sources, a critical engine failure has been detected, casting doubts over the program's ability to meet its ambitious deadline. The engine in question is a crucial component of the Space Launch System (SLS) rocket, which is scheduled to carry the first woman and the next man to the lunar surface. The engine failure has sparked concerns among experts, who fear that it could jeopardize the entire mission and push back the timeline for a manned lunar landing.