![]() These objects circle the sun on a highly elliptical path that scientists thought could only plausibly be explained by the gravitational effects of a planet in the outer solar system that is up to 15 times more massive than Earth.īhuvnesh Jain, co-director of the Penn Center for Particle Cosmology at the University of Pennsylvania, agreed and called the new theory “very intriguing.” Unwin and Scholtz say that such a phenomenon could explain the odd orbits of “trans-Neptunian objects” - clusters of asteroids and comets in a region of the solar system known as the Kuiper Belt that lies beyond Neptune. “Sometimes they’re said to be relics of the Big Bang,” said study co-author James Unwin, a theoretical particle physicist at the University of Illinois at Chicago. Though they have not been directly observed, primordial black holes are thought to have developed shortly after the Big Bang, when density fluctuations across the early universe created small, superdense pockets of matter. Unlike black holes that form out of the remains of collapsed stars, primordial black holes are tiny - “somewhere between a baseball and a bowling ball,” said Jakub Scholtz, a postdoctoral fellow at the Institute for Particle Physics Phenomenology at Durham University in the United Kingdom, and one of the authors of the new study. ![]()
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