An international team of researchers has found dark matter dominating the halos of two supermassive black holes in galaxies roughly 13 billion light years away. Their study, published in The Astrophysical Journal, gives new insight into the relationship between dark matter and supermassive black holes when the universe was still very young, and how galaxies have evolved until today. An international team of researchers has found dark matter dominating the halos of two supermassive black holes in galaxies roughly 13 billion light years away. Their study, published in The Astrophysical Journal, gives new insight into the relationship between dark matter and supermassive black holes when the universe was still very young, and how galaxies have evolved until today. Astronomy Phys.org – latest science and technology news stories