I-Universe ayinamkhawulo futhi ihlala ishintsha njalo. Amaplanethi awapheli namandla awo nawo. Isibonelo salokhu inani elingapheli lama-meteorite awela kwelethu, amaningi awo mancane kakhulu kangangokuba awabhaliswa muntu. Futhi ezinye eziningi ezinganikeza izimpawu zolwazi olungacabangeki. Isibonelo ukuthi eMhlabeni kukhona okungaba ucezu lwenye iplanethi.
Iqembu lososayensi bamazwe omhlaba lonke ligomela ngokuthi i-meteorite etholakala ehlane laseSahara e-Algeria, eNyakatho Afrika iyisiqeshana seplanethi. Ngokuqondile, ucwaningo lwabo luphawula ukuthi kubonakala kuyinsali ye- "I-protoplanet yasendulo," okwenza idwala lomkhathi libe nelukuluku elingavamile elinganikeza imininingwane engakaze ibonwe mayelana neminyaka yokuqala yeSolar System yethu. Yebo, akukho okunye futhi akukho okuncane.
U-Erg Cheche 002 noma u-EC 002 (njengoba i-meteorite yayibizwa kanjalo) yatholakala ngoMeyi ngonyaka odlule kanye nezinqwaba zamatshe ezinesisindo esingama-32 kilograms (70 amakhilogremu) olwandle lwesihlabathi i-Erg Chech eningizimu-ntshonalanga ye-Algeria.
Ikhonjwe ngokushesha okukhulu. Esikhundleni sokwakhiwa kwamameteorite amaningi atholakele, akhiwa lapho izingcezu zothuli nedwala zinamathela ndawonye, ukwakheka kwazo kwakungasho lutho, kufakwa amakristalu e-pyroxene (amaminerali akhiwe nge-calcium, i-magnesium ne-iron). Kwakunombala oluhlaza okotshani noma omnyama, kwakune-vitreous sheen, ejwayelekile yamatshe aqhumayo.
Lokhu kutholwa kumelela ithuba eliyingqayizivele lokufunda izigaba zokuqala zokwakheka kweplanethi futhi ufunde kabanzi ngezimo ezinsukwini zokuqala zeSolar System lapho amaplanethi esiwaziyo futhi esiwathandayo namuhla ayesakhiwa.
Okuningi Nge-EC 002
I-ScienceAlert ibika ukuthi i-asteroid yabikwa ngokushesha njengengajwayelekile ngemuva kokutholakala kwayo olwandle lwesihlabathi i-Erg Check ngoMeyi 2020 njengoba, ngokungafani namameteorite amaningi, kwakucace ukuthi yakhiwa yintaba-mlilo, okuphakamisa ukuthi yaqala njengengxenye yoqweqwe lwe-protoplanet, kuyinto efana "nombungu" weplanethi, emele isigaba sokuqala sesigaba sokuziphendukela kwayo.
Kepha njengoba kuchaziwe ephepheni elisha elishicilelwe ku- "Proceedings of the National Academy of Sciences," ukuhlaziywa kokubola kwemisebe ye-isotopu esampula kukhombisa ukuthi yakha cishe eminyakeni eyizigidi ezingama-4,566 edlule. Lokho isikhathi eside ukwedlula uMhlaba owake waba khona, okusho ukuthi mhlawumbe kuyingxenye yezwe elihlukile, futhi manje selihambile.
Akucaci, ukuthi i-asteroid engavela kuphi. Kodwa-ke, njengoba manje kuyidwala le-magmatic elidala kunawo wonke ake akhonjwa, abacwaningi babhala ephepheni labo, kucishe kube nesiqiniseko sokuthi kuzoxoxwa ngakho ngokuqhubekayo. Futhi lokho ososayensi abakutholayo ngokutadisha ucezu lwasendulo kungaveza ukukhanya okusha ngomlando wohlelo lwethu lwezinkanyezi.
