373 followers michael_zanis @zanismlab RT @qraal: Planet 9 in a Retrograde Orbit? https://t.co/mVp56jdPNK 29 Mar 2017 Reply Repost Favourite
974 followers Qraal @qraal Planet 9 in a Retrograde Orbit? https://t.co/mVp56jdPNK 28 Mar 2017 Reply Repost Favourite