Does This Star Cluster Host a Black Hole in Its Core?
https://skyandtelescope.org/astronomy-news/does-this-star-cluster-host-a-black-hole-in-its-core/

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 .
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