by Marlowe HOOD Agence France Presse PARIS, France (AFP) — The first sighting of clustered dwarf galaxies bolsters a leading theory about how big galaxies such as our Milky Way are formed, and how dark matter binds them, researchers said Monday. Theorised but never seen, the bundled galaxies were discovered using the largest optical survey of the night sky ever compiled, they reported in the journal Nature Astronomy. Seven clusters of three-to-five galaxies are each […]