 Ukuziphatha kwayo kokushisa akuzinzanga njengemigede emikhulu eMhlabeni leyo egcina izinga lokushisa cishe elifanayo kaningi, kodwa iyafana nalena ngokuba imigodi ejulile enhlabathini, kwasho uGlen Cushing we-United States Geological Survey USGS Astrogeology Team kanye neNorthern Arizona University eseFlagstaff, e-Arizona. 