Harvard Scientists Propose Plan to Determine If Planet Nine Is a Primordial Black Hole

Client: Harvard-Smithsonian Center for Astrophysics
Date: 2020
Caption: Artist’s conception of accretion flares resulting from the encounter of an Oort-cloud comet and a hypothesized black hole in the outer solar system.
Credit: M.Weiss/CfA
Link: https://www.cfa.harvard.edu/news/harvard-scientists-propose-plan-determine-if-planet-nine-primordial-black-hole