During SpaceX's 14th test flight of its Starship rocket, one of the six Raptor engines on the second stage unexpectedly shut down shortly after the rocket reached space. The mission, originally intended to last around ten hours, was cut short after just three, resulting in an early landing in the northern Pacific Ocean. This incident has raised concerns about the timeline for returning American astronauts to the Moon, as NASA heavily depends on Starship for its Artemis program, which aims to establish a sustained human presence on the lunar surface. Despite the premature end, the flight achieved several successes, including the deployment of 26 Starlink V3 satellites, which are part of SpaceX's global broadband initiative. However, the overall mission was not celebrated as planned. The cause of the engine failure has not yet been disclosed, and its implications could be significant. If the issue stems from the Raptor engine's design, it might necessitate modifications to the entire fleet of Starship rockets. These engines, which run on methane, are among the most complex and costly components of the rocket and have been a known challenge for SpaceX. Engine problems are not uncommon in recent Starship tests. The three flights using the latest version of the Raptor engine have all encountered some form of issue. For example, during the 12th flight in May, one of the engines failed to ignite at all. With a new Starship flight planned for as early as October, the outcome will be crucial in determining whether the program can meet its upcoming deadlines. NASA has selected a lunar variant of Starship to serve as the lander for its Artemis program, which aims to land astronauts on the Moon by 2028. This version will use the same Raptor engines to transport crew members to the lunar surface and back. Given the involvement of human lives, the reliability of Starship is essential. SpaceX has a narrow window to ensure the rocket is fully operational by next year to support Artemis III, the mission slated for the first lunar landing since the Apollo era. The competition is also closely watching, with Blue Origin's New Glenn rocket potentially challenging SpaceX's position in NASA's plans.