Sulfur is one of the most abundant elements in the universe. If you peer into a diffuse interstellar cloud, you find loads of it—about the amount expected based on fusion patterns in the stars it was born in. However, if you look at a dense, cold molecular cloud—the kind where those stars actua...
Source: [Phys.org](https://phys.org/news/2026-06-astrochemical-universe-sulfur.html)