[00:00–00:04] Milky Way seen edge-on in pristine darkness. [00:04–00:08] one tiny region near the Or

[00:00–00:04] Milky Way seen edge-on in pristine darkness. [00:04–00:08] one tiny region near the Orion Arm changes subtly as stars acquire artificial infrared halos. [00:08–00:12] accelerated hundreds of thousands of years: transformation spreads from star to star. [00:12–00:16] branching expansion fronts cross spiral-arm structures. [00:16–00:20] a significant portion of the galaxy now bears the faint signature of engineered stellar systems.