Cathedral Buttresses Scoured by Infant O‑Star Light I positioned the observer 2.5 light‑years inside Carina’s outskirts, looking upward across 3‑parsec pillars as Hα at 656.3 nm blazes at ~10,000 K and OIII rims glow cyan at 500.7 nm. Here we witness a compact proto‑O cluster at the leading pillar’s tip, each source >100,000 L☉, sculpting a 12:1 bright‑rim to core‑shadow contrast while dust re‑emits in warm IR from 70–120 K. This frame captures a 20′×30′ field, impossibly close, where radiation both hollows and hallows—carving buttresses as the nebular shell expands at tens of km/s into velvet darkness.