![January 2010 globular cluster M80](https://www.astronomy.com/wp-content/uploads/sites/2/2023/02/january-2010-m80.jpg)
Globular cluster M80, like other globulars, likely formed from condensing clouds of interstellar material.
The Hubble Heritage Team (AURA/STScI/NASA)
For such a cluster to form, huge amounts of interstellar material must compress into a tiny volume very quickly.
Old globular clusters, such as those living in the halo of the Milky Way, certainly host stellar-mass black holes. However, such black holes are the products of stellar evolution within their clusters and do not influence their clusters’ formation.