The launch from Cape Canaveral on April 16 was, by then, a practiced spectacle. Flame, thunder, a controlled ascent into the blue. The public’s gaze had already drifted from the moonwalk itself. The novelty of the act had worn thin. Apollo 16, commanded by John Young, was not headed for a maria, the dark, smooth plains of earlier missions. Its target was the Descartes Highlands, a region believed to be forged from volcanic fire. The assumption was wrong.
Young and lunar module pilot Charles Duke spent 71 hours on the surface. They drove the Lunar Roving Vehicle over 16.6 miles of rugged terrain. They collected 209 pounds of rock and soil. The cameras captured their exuberant, bounding movements in the weak gravity. But the most significant story was told by the samples they brought home. The rocks were not volcanic. They were breccias—ancient rubble fused together by the unimaginable violence of meteorite impacts. The highlands were not built by the moon’s internal fire, but by external bombardment. The mission quietly rewrote the early history of our nearest celestial neighbor. It revealed a moon shaped not by quiet geology, but by celestial artillery, its face scarred and remade by forces from the deep void.