Is Dust the Best Thing in the Universe? Part 2: The Astronomer’s Headache
Astrobitica
May 21, 2026 (Last updated: May 21, 2026) 1 minute read
Dust scatters light, absorbs light, re-emits light, and ruins everything. It’s why our maps of the Milky Way were wrong before 1930, and it’s why one of the biggest cosmological announcements of the 2010s quietly evaporated.