Mysterious Galaxy Found With No Dark Matter, Challenging Cosmic Models

In the vast ledger of cosmic knowledge, a small and ghostly galaxy 250 million light-years away has introduced an entry that does not balance: AGC 114905, a diffuse dwarf galaxy the size of the Milky Way but nearly empty of stars, appears to contain no dark matter — the invisible substance long believed to be the universal foundation upon which all galaxies are built. Astrophysicists at the University of Groningen, after 40 hours of careful observation, found the galaxy's gas rotating in ways that require no hidden mass to explain, quietly undermining one of cosmology's most load-bearing assum