Tiny black holes as dark matter express
In the early universe, tiny black holes could have been born. If you add heavy superpartner particles to the theory, the expansion slows down slightly at a certain moment — and more asteroid-mass black holes are produced. Such a “dark scattering” could explain all the mysterious dark matter. Perhaps it’s made of invisible cosmic “boulders”?
After the Big Bang, the Universe resembled a tightly inflated balloon: pressure prevented matter from clumping together. But hypothetical superheavy particles — sort of ‘heavyweights’ of the microcosm — momentarily made the balloon less stiff. Matter easily clumped, giving birth to black holes with masses from a billion to a billion billion tons. The size of an atomic nucleus, they emit no light, yet their collective gravity governs the motion of stars and galaxies. Calculations show: if such holes make up all dark matter, everything matches observations. The usual model gives too few holes and has been rejected. An unexpected twist: these same tiny ones could have become the seeds of supermassive black holes at the centers of galaxies.
🎯 An asteroid-mass black hole is microscopic: passing through Earth, it would leave only a thin tunnel and cause weak tremors. The chance of such an event is extremely small.