- What if planet 9 is a Primordial Black Hole? A New Paper Investigates the Possibility That the Theorized “Planet 9” is Actually a Primordial Black Hole https://arxiv.org/pdf/1909.11090.pdf 22 comments space
- Scientists claim that planet 9 could actually be a primordial black hole with a diameter of just a few centimeters. The planet is on a distant, elongated orbit, 400 to 500 times further away from the sun as Earth. https://www.universal-sci.com/headlines/2019/10/8/scientists-conclude-that-planet-9-could-actually-be-a-primordial-black-hole-with-a-diameter-of-just-a-few-centimeters 7 comments science