Hoos ka eeg qaybta hoose ka dibna ka jawaab su'aasha kadib isla luqadda ay ku qoran tahay: Qaabka: 2006 koox cilmi baarayaal ah oo uu hogaaminayo Ralph von Frese iyo Laramie Potts ayaa isticmaalay cabbirka culeyska ee dayax gacmeedyada NASA ee GRACE si ay u ogaadaan 300-mile-wide Wilkes Land crater, oo laga yaabo inay sameysmeen qiyaastii 250 milyan oo sano ka hor. Su'aal: Muddo intee le'eg ayay ka horreysey craters?
250 milyan oo sano ka hor.