“Dark Hearts of the Cosmos” –Dazzling New Mergers of Black Holes and Neutron Stars Announced

 

Black Holes in Globular Clusters

 

Gravitational-wave researchers increasingly think that globular clusters, dazzling, celestial “snow globes” populated with hundreds of thousands of closely packed stars, harbor dark “hearts,” loaded with dozens to even hundreds of black holes–by far the greatest concentration of these exotic objects found anywhere in the universe.

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