A Chinese team of space engineers has raised concerns about a potentially fatal design flaw in NASA’s Artemis program, specifically regarding its reliance on a single main engine for critical maneuvers. Unlike China’s approach which utilizes multiple engines for redundancy, NASA’s Orion spacecraft, like previous Apollo missions, depends on one powerful engine for key functions such as descent. Experts argue this single point of failure presents a “glaring weakness” and a life-threatening risk to astronauts should that engine malfunction. The Chinese assessment highlights differing philosophies in spacecraft design, with China prioritizing redundancy and crew safety. This debate underscores the critical engineering challenges inherent in returning humans to the moon. The vulnerability stems from the significant consequences of a main engine failure during descent, leaving limited options for a safe landing. The contrasting approaches reflect differing risk tolerances between the two space programs.