We don’t know if the theorized primordial black holes (PBH) are real. If they are, they formed in the very early Universe when physics were much different. They had no stellar progenitors, and were created by direct collapse of densely-packed subatomic matter. Theorists have wondered if PBH could be dark matter, or a component of dark matter. […] The post What Happens to a Star That Captures A Primordial Black Hole? appeared first on MIT Physics .