The predicted position of Planet Nine is intended to explain the irregular orbits of some Kuiper Belt objects in the outer solar system. However, some researchers are unconvinced that these orbits are caused by an undiscovered planet, and the scientific community as a whole still awaits direct observational evidence of Planet Nine’s existence. If Planet Nine does exist, researchers predict it to be much larger than Earth and to orbit in an unusual orbit billions of miles from Neptune, the eighth and currently last planet in our solar system. Planet Nine’s proposed orbit is so far from the Sun that it would be difficult for Earth-based scientists to detect it, making it difficult to prove or disprove its existence.