The Mystery of Not Merging Equal Sized Black Holes observed by LIGO.
Herbig Haro systems at all scales are driven by equal sized Black Holes able to repel each other (New LIGO Physics) and form one or even later more stars in the middle.Most Nebula observed by The JWST (John Webb Telescope) show us in infra red millions of dual hotspots ( former star spots) or even triple hotspots with the young star in the middle.
So The Super Nova explosions forming stars by their expelled Star spots often able to form Pairs of equal Starspots (=micro Black Holes)
Conclusion,
1: Starspots are former crashed Comets earlier formed by their own star starting as micro black hole and often observed as a dual dumbbell comet.
2: The first stars after the Big bang should be the largest, creating smaller Stars after explosion into a supernova.
3: at the end of the Galaxy, only Dust Balls can be formed in dual microscopic Herbig Haro systems.
4: Star formation has ended also after Galaxy Merging , see: Why do galaxies stop forming stars.
IC 443 Super Nova Nebula.
The origin of Herbig Haro star production is:
1: The Trapped space (Penrose) Black Hole Horizon creating Fermions in two charged layers around the BH.
2: The solved Mystery of Equal sized Black Holes repelling each other SO NOT MERGING !!
Not merging Black Hole of equal sizes. (LIGO)
Separating Super Novas. Examples of the Supernova massless Starspot black holes and the Massive Nucleus, how they are separate from each other.
