Media Outlet:
Gizmodo Publication Date:
Description:
Astronomers have uncovered evidence of an extended dark matter halo around an ancient galaxy located about 163,000 light years from Earth, reports Isaac Schultz for Gizmodo. “We know [dark matter] is there because in order for galaxies to remain bound, there must be more matter than what we see visibly, from starlight,” explains graduate student Anirudh Chiti. “That led to the hypothesis of dark matter existing as an ingredient that holds galaxies together.”