On August 5, a discarded Falcon 9 rocket stage—a hollow relic of earlier ambitions—will complete its long drift through space by striking the Moon near Einstein crater at over 5,400 miles per hour. What might have been merely another quiet collision in the solar system's long history of impacts becomes something rarer: a moment potentially visible from Earth, a flash of displaced lunar soil catching sunlight for the first time in human observation. Astronomers watch not only for the spectacle, but because the Moon is no longer a distant object of contemplation—it is becoming a destination, and