New research led by Daniel Paraizo from Eberly College of Science suggests that primordial black holes, which may have formed shortly after the Big Bang, could have significantly longer lifespans than previously estimated. These black holes, potentially as small as 20 micrograms, could undergo a transformation into white holes, which are theorized to expel matter instead of trapping it. The study highlights that once a primordial black hole reaches the Planck mass, it may emit purifying radiation characteristic of a white hole. The researchers found that a primordial black hole with an initial mass of about one ton could explode and become stable at this critical mass, challenging previous assumptions about black hole evaporation. The implications of these findings could reshape our understanding of black holes and white holes, although a comprehensive theory of quantum gravity is still needed to fully explain these phenomena. The research is currently available in a pre-peer-reviewed format on arXiv.