On October 10, 1846, just seventeen days after astronomers confirmed Neptune’s existence through pure mathematics, English astronomer William Lassell pointed his telescope into the dark and spotted its massive moon, Triton. Lassell was not an academic elitist; he was a brewer who financed his obsession by grinding his own high-precision mirrors—a Victorian maker-culture pioneer hacking together state-of-the-art hardware to scan the heavens. Triton immediately disrupted neat planetary models. Moving in a bizarre retrograde orbit, it was eventually recognized as a frozen, geologically active wanderer captured from the Kuiper Belt. Lassell’s discovery proved an enduring truth of technological progress: brilliant algorithms and celestial calculations can point you toward the target, but it takes independent builders pushing physical sensor limits to uncover the anomalies that completely rewrite the system's architecture.