Primordial black holes: Hiding in planets and everyday objects

Primordial black holes, theorized as a potential form of dark matter, have never been directly observed. New research, co-led by the University at Buffalo, suggests that their existence could be confirmed through both large and small signatures, such as hollow planetoids in space or microscopic tunnels in materials like rocks, metal, and glass on Earth. The study proposes that a primordial black hole trapped within a large rocky object in space could hollow out its core, providing a potential clue to their existence.