First Star Stream Beyond Milky Way | Science News

Astronomers have discovered the first-ever stellar stream outside our Milky Way, a faint ribbon of stars orbiting a distant galaxy 115 million light-years away. This cosmic breadcrumb trail reveals how dark matter—making up 85% of the universe’s matter—shapes galaxies through gravity. By tracking star movements, scientists can map invisible mass and unlock dark matter’s distribution. Thanks to Hubble’s sharp vision and upcoming telescopes like Euclid and Nancy Grace Roman, this breakthrough could lead to countless more discoveries, bringing us closer to solving one of cosmology’s greatest mysteries. Listen in comfort:Get a discount on a Soli Pillow: http://solipillow.com/discount/dnn. Advertise on DNN:[email protected] This is an automated, high-level news summary based on public reporting.Report issues to [email protected]. View sources & latest updates:https://sources.thednn.ai/89f971190b38c0bd