Researchers find potential signs of primordial black holes in space and Earth materials

A new study from the University at Buffalo suggests that primordial black holes (PBHs) may leave detectable signs in both space and on Earth. Researchers believe these small black holes, formed shortly after the Big Bang, could create hollow structures in celestial objects and microscopic tunnels in terrestrial materials. The study, published in Physics of the Dark Universe, indicates that PBHs could form in dense regions during the universe's expansion. They may consume the cores of asteroids or moons, resulting in hollow shells no larger than one-tenth of Earth's radius. Additionally, the researchers propose that PBHs could create tiny tunnels in solid materials, which might be found in ancient rocks or historic buildings. Although the chance of PBHs interacting with Earth is low, the study suggests that investigating these materials could be scientifically valuable.