In the long chronicle of celestial collisions, most go unwitnessed — but sometime between April and mid-September of 2026, an asteroid the size of a six-story building struck the moon, and humanity was watching. NASA's lunar orbiter detected the resulting crater, named McGetchin, still glowing with freshly excavated rock across 222 meters of lunar surface. Such a discovery arrives perhaps once a century, offering scientists a rare, unweathered window into the forces that have shaped worlds long before human eyes existed to observe them.