When astrophysicists observe the cosmos, they see different types of black holes. They range from gargantuan supermassive black holes with billions of solar masses to difficult-to-find intermediate-mass black holes (IMBHs) all the way down to smaller stellar-mass black holes. But there may be another class of these objects: primordial black holes (PBHs) that formed in …



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Source: Roman Space Telescope Will Be Hunting For Primordial Black Holes