Scientists predict that there is a planet in the Kuiper Belt.

 Scientists predict that there is a planet in the Kuiper Belt. 

The Planet X is back in highlights again. The question is "why we cannot see that object, that causes anomalies in Neptune and Uranus' trajectories. The question is also why we cannot see the glubs of the material in the Kuiper Belt. 

Researchers think that there is a planet in the Kuiper belt that is somehow invisible to us. Conditions in our solar system's edge are extremely cold and stable. The smallest gravitational effects can seen in that area. And the low temperature makes another thing that is not possible on Earth. 

In some models, the helium oceans can cover very cold planets. Those helium oceans can give those planets an extremely powerful magnetic field. Those "helium worlds" would be cold versions of the water moons or icy moons. In those hypothetical helium worlds the mantle is liquid helium and the shell is hydrocarbon ice. And maybe the hypothetical planet X is this kind of planet. 

In some other visions, Planet X is formed of dark matter. That means it's only interaction between material is gravitation. 

All objects in that area are superconducting. The entire planet can turn to superconducting and that makes it the world that is unknown to us. If there is no volcanic activity, the hypothetical planet whose surface temperature is near zero Kelvin can be hard to detect. 

So in that model, Planet X is older than any other planet in our solar system.  And that means there is the possibility that in its core is no fissile material left anymore. In some models, Planet X is the rogue planet that was left from its solar system because of some nova or supernova eruption. In that model, the planet would be a so-called zombie planet. That had no nuclear isotopes when it left its solar system. 

The distance of the planet to its star might be huge. And the thing that makes it interesting is that if it's superconducting, it stores all radio signals that reach it in the form they sent. So that the planet would store the last radio signals from the civilization before its star is lost in an explosion. In some visions, this hypothetical planet would be a grapefruit-size black hole. Some people say that the X-ray flares in Uranus' atmosphere are caused by the high-energy particles that this hypothetical black hole sends. And the thing that supports that theory is also that the "planet X" is invisible. 

The dwarf planet Quaoar has rings that should not be. And maybe that phenomenon explains some part of Planet X. 

But there is a possibility that the hypothetical planet in the Kuiper belt has a powerful magnetic field. In some models, some very cold planets can covered by liquid helium ocean. That liquid helium ocean could be some kind of hydrocarbon ice shell. 

The rotation speed of that ice shell would be very high. And that thing can form an extremely powerful magnetic field. That can accelerate particles to a very high speed. And that thing could explain the X-ray flares in Uranus's atmosphere. 

https://interestingengineering.com/science/astrophysicists-predict-a-hidden-planet-in-the-kuiper-belt