They can find exoplanets near stars light year away by virtue of dimming but they can't find a planet on the edge of our solar system.
Maybe it's made of glass and transparent or blacks and made of obsidian, if it exists.
A planet with a low albedo located beyond Pluto or even the Oort Cloud would be nigh impossible to see. If it ran into something and suddenly gave of a burst of energy and we happened to be looking in that direction at the time we ‘might’ see it .....................
I heard General Zod is trapped there.
“They can find exoplanets near stars light year away by virtue of dimming but they can’t find a planet on the edge of our solar system.”
Different problems. Exoplanets are, from our perspective, really close to the host star. So we know where to look. If planet 9 exists, it could be anywhere in a 360 degree circle from our perspective. And that’s assuming it orbits in the ecliptic. If it is a captured planet, it could be anywhere in the sphere around the earth.
The best data I have seen hints that we might have another planet by looking at dwarf planets that have weird orbits that might be explained by the gravitational influence of another planet way out there. That data doesn’t really point to where in the 360 degrees it might be.
This study is just a simulation based on theories about solar system formation. Kind of like the global warming simulations of earth’s future temperatures. Except the global warming models at least have some past data to model.