If you remove planet nine from the model and instead allow for lots of small objects scattered across a wide area, collective attractions between those objects could just as easily account for the eccentric orbits we see in some TNOs. Antranik Sefilian More Quotes by Antranik Sefilian More Quotes From Antranik Sefilian The problem is when youre observing the disc from inside the system, its almost impossible to see the whole thing at once. While we dont have direct observational evidence for the disc, neither do we have it for Planet Nine, which is why were investigating other possibilities, nevertheless, it is interesting to note that observations of Kuiper belt analogues around other stars, as well as planet formation models, reveal massive remnant populations of debris. Antranik Sefilian science