The well-known star cluster Messier 4 might have an elusive, midsize black hole hidden at its center, but the evidence isn’t conclusive yet.
The post Does This Star Cluster Host a Black Hole in Its Core? appeared first on Sky & Telescope.
The well-known star cluster Messier 4 might have an elusive, midsize black hole hidden at its center, but the evidence isn’t conclusive yet.
The post Does This Star Cluster Host a Black Hole in Its Core? appeared first on Sky & Telescope.