> The Solar System planets accumulated from a disk of dust and gas that once orbited the Sun. Therefore, the planets move close to their common plane on near-circular orbits. About 3,000 small objects have been observed to orbit the Sun beyond Neptune (rp > 35 au); surprisingly, most move on eccentric and inclined orbits. Therefore, some force must have lifted these trans-Neptunian objects (TNOs) from the disk where they formed and altered their orbits markedly.
I feel there is a strong bias towards objects that are only discoverable because of their highly eccentric orbit
> The Solar System planets accumulated from a disk of dust and gas that once orbited the Sun. Therefore, the planets move close to their common plane on near-circular orbits. About 3,000 small objects have been observed to orbit the Sun beyond Neptune (rp > 35 au); surprisingly, most move on eccentric and inclined orbits. Therefore, some force must have lifted these trans-Neptunian objects (TNOs) from the disk where they formed and altered their orbits markedly.
I feel there is a strong bias towards objects that are only discoverable because of their highly eccentric orbit