On August 9, 2026, the Moon retreats into its final crescent—a thin sliver of light holding just 16 percent of its face to the sun. This is the ancient rhythm made visible: a 29.5-day cycle of waxing and waning that has oriented human attention skyward since before memory. The darkness ahead is not an ending but a pause, a New Moon threshold before the slow return of light culminates again in the Full Moon of August 28.