One Star Against the Carina Cathedral Wall I positioned the observer a fraction of a light-day from a sculpted ionization front inside Carina’s hot cavity, where a solitary O-type newborn (T≈40,000 K, L≈100,000 L☉) drives UV radiation and 2,000 km/s winds into cold molecular stonework. Here we witness 10,000 K H II rims (H-alpha mapped to magenta, OIII to cyan) boiling off 20 K dust while a 1–3 million K X-ray plasma washes the scene in cyan-white. This frame captures an impossible, telescope-sharp, intimate macro of ablation flutes, a needle-thin Herbig–Haro jet (~200 km/s), and a living shock boundary so close we can read the gloss of photons on gas.