Rangarira ndima iri pasi apa uye ipapo pindura mubvunzo gare gare mumutauro mumwe chetewo sechikamu:  Passage: Muna 2006 boka revanzveri rinotungamirirwa naRalph von Frese naLaramie Potts rakashandisa kuyera simba rinokweva rinobva kumasatellite eGRACE aNASA kuti riwane gomba reWilkes Land rine upamhi hwemakiromita 300, iro zvichida rakaumbwa anenge mamiriyoni 250 amakore akapfuura.  Mubvunzo: Makomba acho akaumbwa kare kare sei?
Makore 250 miriyoni akapfuura.