The mysterious deep space fossil, a new member of our solar system, can rewrite the history of the solar system.

"A newly found icy object, Ammonite, may be a 4-billion-year-old fossil from the Solar System’s edge—and it’s casting doubt on the Planet Nine theory. (Artist’s concept.) Credit: SciTechDaily.com" (ScitechDaily, ‘Ammonite’: A Mysterious Deep Space Fossil That Could Rewrite Solar System History)

"A mysterious icy object discovered far beyond Pluto is rewriting what we thought we knew about the Solar System’s past." (ScitechDaily, ‘Ammonite’: A Mysterious Deep Space Fossil That Could Rewrite Solar System History)

“Nicknamed “Ammonite,” this ancient world has an orbit unlike any other, placing it in the ultra-rare class of “sednoids.” Its discovery, made by the Subaru Telescope and confirmed through years of orbital data, challenges theories about Planet Nine and hints at a possible planetary shakeup billions of years ago. With a stable orbit lasting over 4 billion years, Ammonite may be a cosmic fossil—a remnant of a chaotic era when invisible forces or even lost planets shaped the outskirts of our solar neighborhood.” (ScitechDaily, ‘Ammonite’: A Mysterious Deep Space Fossil That Could Rewrite Solar System History)

The mysterious object called “Ammonite” could make Planet 9 non-existent. The Ammonite dwarf planet is Sednoid. That means it's similar to Sedna. 

There is a possibility that this mysterious object would not exist if Planet 9 is real. And that makes the Planet 9 mystery more interesting than ever before. Planet 9 is the mysterious gravitational effect that causes anomalies in Neptune's trajectories. Planet 9 is also introduced as the reason for Neptune's largest moon, Triton, to be opposite the trajectory of other Neptune moons. 

The problem with all those theories is nobody has seen Planet 9 yet. Planet 9 remains a hypothesis. The mysterious gravitational effect remains, but that's all we see. Modern telescopes have found many objects from the Kuiper Belt. But none of them were large enough to cause anomalies in Neptune's trajectory. Sometimes Planet 9 is offered as an explanation for Uranus's X-ray flares and Triton icy geysers. 

There are many things that tell us that something strange happened in the past at the Kuiper Belt. The Ammonite and Eris are dwarf planets whose orbits are interesting. They are stretched, and they are not in line, and there is a possibility that some ancient planet that left the solar system can cause those strange trajectories. Maybe that strange object followed the parabolic trajectory and pulled those objects that you can see in that map to their trajectories. 

But that thing is only a hypothesis. There are models that Planet 9 was so far away from the solar system that some cosmic collision just pushed that planet away. The other model is that Planet 9 was some rogue planet, and the interesting question is this: could that object hang around somewhere between Proxima Centauri and the Sun? 

The Ammonite is a thing. That might explain many things about the past of the solar system. And there can be theories that the Ammonite is the moon, that the mysterious Planet 9 left behind it if it left the solar system a long time ago. 

But if Planet 9 is a primordial black hole, that changes the game forever. If  Planet 9 is a primordial black hole that lurks under the icy shell of some dwarf planet, that explains many things. Hypothetical primordial black holes mean that the thing that causes anomalies in Neptune's trajectory must not be big. So, could some of those already known dwarf planets be Planet 9? 

In some models, “Planet 9” is a small primordial black hole. That black hole could exist in the regular-looking asteroid or dwarf planet. In that model, the black hole can collect ice balls around it. Hollow ice shells can orbit that small black hole. 

The hypothetical primordial black hole is the planet-mass ultra-small black hole. The problem is nobody has seen that type of black hole yet. But if they exist, some known dwarf planets can be that hypothetical Planet 9. So, if that kind of black hole exists in the solar system, that means this thing could be the discovery for the next millennium. 

In some scenarios, "Planet 9" is an energy impulse that can form when antimatter hits the impact wave in the heliopause. That energy impulse can cause strong effects on Uranus's Neptune and the dwarf planet's trajectories. That is one of the things that might explain something about the mystery called Planet 9. 

https://www.cfht.hawaii.edu/en/news/AmmoniteJul2025/

https://gizmodo.com/astronomers-discover-potential-dwarf-planet-lurking-way-beyond-pluto-2000630151

https://www.livescience.com/uranus-x-ray-radiation-detected.html

https://www.sciencing.com/1914379/new-world-discovered-in-our-solar-system-ammonite/

https://scitechdaily.com/ammonite-a-mysterious-deep-space-fossil-that-could-rewrite-solar-system-history/

https://www.space.com/black-holes-solar-system

https://en.wikipedia.org/wiki/Planet_Nine

https://en.wikipedia.org/wiki/2023_KQ14

https://en.wikipedia.org/wiki/Sedna_(dwarf_planet)