In the long arc of humanity's reach beyond its home world, few endeavors carry the weight of sending a flying machine to a moon six times farther from the Sun than Earth itself. NASA's Dragonfly mission, set to depart in July 2028 and arrive at Saturn's Titan in late 2034, is precisely such an endeavor — a rotorcraft designed to hop across an alien landscape of hydrocarbon seas and organic dunes in search of the chemical preconditions for life. Titan, shrouded in nitrogen and cold beyond imagining, holds a mirror to early Earth, and in studying it, we study ourselves.