First Extragalactic Stellar Stream Discovered in Hubble Archive, Unlocking Secrets of Dark Matter
Astronomers have uncovered the first-ever globular cluster stellar stream located outside the Milky Way, transforming our ability to study elusive dark matter. Published on August 12, 2026, in the journal Nature, the groundbreaking study leverages archival data from the Hubble Space Telescope to reveal a faint ribbon of stars—dubbed Oyashio—streaming away from a cluster in … Read more