Primordial Black Holes May Unveil Nature of Dark Matter


Ancient Quasars


“Primordial black holes (PBHs) remain hypothetical objects for the moment,” says Alvise Raccanelli of CERN. “Initially proposed by Stephen Hawking in 1971, they have come back to the fore in recent years as possible candidates for explaining dark matter. It is believed that dark matter accounts for approximately 80 percent of all matter present in the universe, so to explain even just a small part of it would be a major achievement. Looking for evidence of the existence of PBHs, or excluding their existence, provides us with information on the physics of the primordial universe.”