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Dark matter might be made of minuscule remnants of evaporated primordial black holes — a conclusion drawn by physicists studying the early universe.
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The universe might have begun with tiny black holes that evaporated, leaving behind invisible 'grains.' Today, those grains could be all the dark matter, and their past can be heard in gravitational waves.
🎯 Primordial black holes can weigh as much as a mountain yet be smaller than an atom.