If Planet 9 is a Primordial Black Hole, We Might Be Able to See Flares When it Consumes Comets

A comet-eating black hole the size of a planet? It’s possible. And if there’s one out there in the distant Solar System, a pair of researchers think they know how to find it. If they do, we might finally put the Planet 9 issue to rest. The researchers are Dr. Avi Loeb, a Professor of …