Primordial black holes (PBHs) are black holes formed in the early universe due to extreme density fluctuations, unlike those formed by collapsing stars. Recent research by Banerjee and colleagues explores how radiative symmetry breaking (RSB) , a type of phase transition, might produce PBHs during periods of supercooling. RSB occurs when the universe's temperature drops significantly below a critical level before transitioning to a new phase. This creates unique conditions for forming PBHs. Banerjee's study uses a model-independent approach , meaning their findings apply across many theoretical frameworks. The team discovered that PBHs form in "late-blooming" regions—patches of the universe transitioning later than their surroundings. These PBHs generally have low initial spin and a range of masses, some large enough to survive until today. They also found that PBHs could explain certain microlensing anomalies, suggesting we might have already observed their effects. ...