More than a year after delivering its payloads and falling silent, a SpaceX rocket upper stage will complete its unplanned journey by striking the lunar surface near Einstein Crater on Wednesday at 5,400 miles per hour. What began as a mission of quiet achievement — including the first fully successful private lunar landing — ends in an accidental collision that no one designed but many will study. In an age when humanity is returning to the moon with growing ambition, this unguided piece of metal offers a sobering reminder that the space between intention and consequence is vast, and that the