NASA image of HVCs jumping in and out of the Milky Way plain disc.
A support for the multiple Fermion production of new physics dark matter black holes distributed as different sized BH families, located in the MW Halo and as the origin of cumulation of plasma in the MW. According to Quantum FFF Theory. see: HUBBLE
and; https://hubblesite.org/uploads/science_paper/file_attachment/519/Fox_2019_ApJ_884_53.pdf
and HERE
