The heaviest known pair of black holes might have been born tiny right after the Big Bang and then grown like a snowball. If so, a new era of observations will confirm that such 'primordial seeds' are everywhere, perhaps unlocking the mystery of dark matter.
🎯 Primordial black holes could have formed from random clumps of energy in the first second after the Big Bang.
🎬 In science fiction, tiny primordial black holes are sometimes depicted as invisible 'bullets' that can pass through planets and cause disasters.