The concept of a ninth planet in our solar system circling far beyond Neptune fascinated the public imagination in 2016, and earlier this year the idea was expanded when astronomers found new evidence to support the existence of Planet Nine. Now another team of astronomers has come up with an even more intriguing idea, claiming that the foreign body we see is not a planet but can be a miniature black hole.
The researchers contemplate what they define as an exhilarating prospect that the eccentric motions of objects that revolve around the sun beyond Neptune could be elucidated by the existence of a black hole. Despite the improbability, the authors consider that this scenario is not unreasoning and suggest a way to test it by looking for evidence of a dark micro loop around the mini black hole.
Primitive black holes are a notional kind of black hole that shaped in the first universe right after the big bang. As the early universe was so dense, it was possible that black holes were not formed due to the collapsing of the stars, but on a much smaller scale.
To find the possible mini black hole in our cosmic backyard, we need to be inventive in the equipment we deploy. Every light is absorbed by black holes that exceed their horizon, making it intricate to see. But the researchers propose that a black hole of planetary mass would be surrounded by a halo of dark matter that could extend up to 1 billion kilometers from the center. Although we cannot directly detect dark matter, we can look for interacting dark matter particles that create gamma-ray bursts that indicate the presence of a black hole.