Why Primordial Black Holes Probably Aren’t Dark Matter
PBS Space Time · Explainer · 12 min · 2021 · YouTube title: What If Dark Matter Is Just Black Holes?
Why it's here
HN people link it in dark matter and black hole threads as a clear summary of why black holes alone are unlikely to explain dark matter.
What it covers
PBS Space Time asks whether dark matter could be made of primordial black holes. It walks through the observational constraints that limit this idea.