Is Planet 9 really a black hole?

Is there a black hole in our solar system? Physicists have speculated that the orbits of huge chunks of rock and ice in the outer solar system might have been influenced by a new planet called Planet 9. It's thought that Planet 9 could have a mass five to 20 times bigger than the Earth. Big Bang Now a team of researchers from Durham University and the University of Illinois have come up with a new theory that Planet 9 might be a small black hole left over from the Big Bang. They looked at six unexpected events when astronomers saw the light of a star being bent by the gravitational effect of a large object. These events correspond to objects with a mass five to 20 times bigger than the Earth, like primordial black holes left over from the beginning of the universe 13.8 billion years ago. The researchers describe this anomaly as "remarkable". It suggests that the likelihood of Planet 9 being a black hole is similar to the likelihood of it being a planet.