2018-12-12 20:42 thomas.godart Ancient Mystery : What happened about 12.000 years ago, really? The 12,000 Year old Comet that Landed on TEDTalks…and Erased Ancient Civilization - Greenland Crater play_circle_filled YouTube https://youtu.be/hMTTFLiOwX0 labelBright Insight check_box_outline_blank labelancient check_box_outline_blank labelmystery check_box_outline_blank labelinteresting check_box