SNU team finds 142 dark galaxy candidates and challenges galaxy formation theory
dongascience.com
An SNU team found 142 galaxies made almost entirely of dark matter — with barely any stars — and that shouldn't exist under the standard model of galaxy formation.
Lambda-CDM ModelDark Matter Halo TheoryGalaxy Formation TheoryGravitational Collapse

Theory Briefing
- The standard model says gas falling into dark matter halos must condense into stars, but these 142 candidates appear to have skipped that step entirely.
- Seoul National University researchers identified the dark galaxy candidates, a find that directly challenges the leading framework for how galaxies are born.
- If confirmed, these near-starless structures suggest dark matter can form stable galactic-scale objects without the star-forming process scientists assumed was inevitable.