Very interesting! So all known "stuff floating around in our solarsystem" like Hale-Bopp et al have been deemed originating from here? Or have that conclusion j

Very interesting! So all known "stuff floating around in our solarsystem" like Hale-Bopp et al have been deemed originating from here? Or have that conclusion just been taken for granted? Edit: Looked at the paper and saw this in the abstract: >None of the approximately 750,000 known asteroids and comets is thought to have originated outside our Solar System, but formation models suggest that orbital migration of the giant planets ejected a large fraction of the original planetesimals into interstellar space1. Very interesting that this has been the thought of affairs for objects in our solar system. I have never contemplated it and just assumed we must have been visited before by such objects.