Planet Nine might be an Ancient Black Hole

The orbits of six distant objects in the solar system all mysteriously line up in a single direction. A planet with 10 times Earth's mass could explain this configuration

'Planet Nine' may actually be a black hole

That may be true, but black holes aren't all the same, and researchers believe so-called primordial black holes (PBHs) that were created shortly after the Big Bang may still exist. According to some theories, the object could be up to ten times heavier in comparison to Earth. That apparently fits what scientists see way out there, 20 times further than Neptune, where ice chunks have their own oval-shaped orbit in what's called the Kuiper Belt.

'We highlight that the anomalous orbits of Trans-Neptunian Objects (TNOs) and an excess in microlensing events in the 5-year The Optical Gravitational Lensing Experiment (OGLE) dataset can be simultaneously explained by a new population of astrophysical bodies with mass several times that of Earth.

For more than a century some astronomers have suggested that the weird gravitational forces observed acting on distant bodies in the solar system were being caused by another planet.

An astronomical anomaly thought-about by scientists to level to an as-yet-undiscovered planet may very well be an enormous black gap lurking deep inside our photo voltaic system, in line with a brand new concept.

But that may not be the case. That's the title of a new paper about the mysterious gravity source at the edge of our solar system, Business Insider reports.

Both of these odd phenomena are likely caused by the interference of unknown objects, each with similar mass. It could be one black hole the size of a bowling ball with the mass of 10 Earths, or a number of smaller primordial black holes that add up to that mass.

"Capture of a free-floating planet is a leading explanation for the origin of Planet Nine, and we show that the probability of capturing a PBH [Primordial Black Hole] instead is comparable", the astronomers write in the paper.

To search for the potential mini black hole in our cosmic backyard, we'll have to be creative in the tools we use. "But a black hole the size of your wallet is a bit harder to find". Furthermore, scientists employ different means to detect planets and black holes thus eliminating chances further should the "planet" actually be a black hole. Despite how unlikely that sounds, the authors believe that "this scenario is not unreasonable" and they suggest a way to test it by looking for evidence of a dark matter microhalo around the mini black hole. Unwin and Scholtz intend to browse through the data it has collected in search of slow-moving gamma ray flashes in the sky: such would be the behavior of Planet 9 in terrestrial observations.

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