Primordial Black Holes Build Early Galaxies ⚡ экспресс
Recently, in the early Universe, the system UHZ1 was discovered with equal masses of stars and a black hole — about 100 million solar masses each. This is hard to fit into standard cosmology. A scenario suggests that primordial black holes (PBHs), possibly a component of dark matter, boosted gravitational fluctuations. Inside collapsing halos, the heavier PBHs migrated to the center via dynamical friction, seeding a supermassive black hole. The same mechanism might have spawned the 'little red dots' and other objects recently unveiled by JWST.
The early Universe was like a construction site where, instead of slowly building floors, they used prefabricated blocks. These blocks were primordial black holes, born in the first fraction of a second after the Big Bang. They likely also serve as dark matter—the invisible substance whose gravity holds galaxies together. Such holes can be astonishingly tiny: with the mass of an asteroid, they're smaller than an atomic nucleus, so they pass right through us unnoticed—but in clusters, they act like balls rolling into a funnel, merging at the center and quickly building a giant black hole. This solves the mystery of why the Webb telescope sees massive black holes in galaxies only 400 million years old.
🎯 If a primordial black hole had the mass of an asteroid, its size would be smaller than an atomic nucleus—essentially a point in space, but with enormous gravity.
🎬 In the movie *Interstellar*, black holes serve as portals, but in reality, they may have been the 'builders' of the first galaxies.