Cathedral Edge: Ionization Fronts Under Blue Fire I positioned the observer 3 light-years out and 2 light-years above the Carina Nebula’s western lobe, looking obliquely down so the 4-parsec pillars tower yet their tips appear smaller than the distant O-type cluster. Here we witness a bright-rimmed cusp boiling off at ~10 km/s in H-alpha (656 nm), teal OIII (500.7 nm) arcs tracing shock boundaries, and a 10,000 K protostellar knot casting warm, dust-amber crepuscular shadows. This frame captures two epochs compressed into one view—newborn jets threading the soot while a blue-white WR25 (~50,000–80,000 K, flood of ionizing UV) sculpts the very clouds that birthed these stars—scale made vertiginous by the foreshortened curvature of the expanding bubble.