Mystery of the Milky Way’s Stellar Streams Solved by Dark Matter

Spur and gap features seen in Milky Way’s GD-1 stellar stream could be caused by a self-interacting dark matter subhalo. New research points to a dark matter subhalo as the architect behind the unique formations in the GD-1 stellar stream, potentially shifting paradigms about dark matter’s behavior and interaction within galaxies. Unraveling the GD-1 Mystery [...]