Ka taƙaita labarin:  (CNN) Babban meteorite ya rabu biyu jim kadan kafin ya yi karo da Duniya, yana shafe nau'ikan halittu da yawa. Wannan mummunan abu ya faru a duniyarmu miliyoyin shekaru da suka wuce, amma masu bincike yanzu sun fara gano abin da ya faru. A wani yanki mai nisa na Tsakiyar Ostiraliya, ɓangarorin asteroid guda biyu sun bar abin da masana ilimin ƙasa suka ce shine mafi girman yankin da aka taɓa samu a Duniya, wanda ya bazu a kan yanki mai faɗin kilomita 400 (250 mil). "Dole ne kowane asteroid biyu ya kasance fiye da kilomita 10 a fadin - zai kasance labule ga yawancin nau'in rayuwa a duniya a lokacin", in ji babban mai binciken Andrew Glikson na Jami'ar Kasa ta Australiya. Tawagar ta wallafa bincikenta a mujallar Tectonophysics a wannan watan. Ramin da asteroids suka haifar ya ɓace da dadewa. Amma Glikson ya ce masu binciken sun yi tuntuɓe a kan raunuka daga tasirin yayin hakowa don binciken geothermal. An binne alamomi fiye da kilomita 2 a cikin ɓawon duniya, a ƙarƙashin wani yanki kusa da iyakokin Kudancin Ostiraliya, Queensland da Yankin Arewa. Glikson ya ce: "Akwai manyan gidaje biyu masu zurfi a cikin kashin, wanda aka kafa ta hanyar farfajiyar duniya ta sake farfadowa bayan manyan tasirin, da kuma kawo dutsen daga mayafin da ke ƙasa", in ji Glikson. Masu bincike har yanzu suna kokarin gano daidai lokacin da wannan abin ya faru. Dutse da ke kewaye da shi yana da shekaru miliyan 300 zuwa miliyan 600, a cewar tawagar, amma ba su sami damar gano irin shaidar da wasu hare-haren meteorite suka bari ba. Wani babban hadarin meteorite wanda aka yi imanin ya haifar da mutuwar nau'in dinosaur da yawa shekaru miliyan 66 da suka gabata ya fitar da guguwa a cikin iska wanda yanzu ya bayyana a matsayin shimfidar wuri a cikin duwatsu. Amma masu binciken sun ce ba su ci karo da irin wannan layin ba a cikin tarkace daga kimanin shekaru miliyan 300 da suka gabata. "Abu ne mai ban mamaki -- ba za mu iya samun wani abu da ya faru da ya yi daidai da waɗannan haɗarurruka ba. Ina da shakkar cewa tasirin zai iya zama ya fi shekaru miliyan 300, "in ji Glikson. Binciken da aka samu na babbar hadarin asteroid zai iya...
Sassan tauraron biyu sun yi karo da Australia shekaru miliyoyin da suka wuce. Masu bincike sun yi tuntuɓe a kan alamun yankin da ya faru a cikin zurfin ƙasa.