NASA's Artemis Program Hits Major Roadblock: Engine Failure Threatens Moon Mission A critical setback has struck NASA's ambitious Artemis program, which aims to return humans to the lunar surface by 2025. According to reports, a critical engine failure has been detected in one of the Space Launch System (SLS) rockets, which is set to propel the Orion spacecraft on its historic mission to the moon. The engine failure has raised concerns about the program's timeline and the potential for further delays. As NASA scrambles to address the issue, the future of the Artemis program hangs in the balance.