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But have you ever wondered where those comets came from and where they go when they complete their orbit around the Earth?

This is a mystery that scientists are still mostly unable to answer.

Some comets with shorter orbits closer to our solar system are believed to be from icy interstellar objects called scattered disks.

However, this only accounts for a small fraction of known comets.

The origins of those with longer period orbits as well as some short period orbit comets