Chilengedwe chilibe malire ndipo chimasintha nthawi zonse. Mapulaneti alibe malire komanso mphamvu zawo. Chitsanzo cha izi ndi ma meteorite osatha omwe amagwera pa ife, ambiri a iwo ndi ochepa kwambiri mwakuti samalembetsedwa ndi aliyense. Ndipo ena ambiri omwe amatha kupereka chidziwitso chazambiri zosaganizirika. Mwachitsanzo kuti pa Dziko lapansi pali chomwe chingakhale chidutswa cha pulaneti lina.
Gulu lapadziko lonse la asayansi likunena kuti meteorite yomwe imapezeka m'chipululu cha Sahara ku Algeria, Northern Africa ndi gawo la dziko lapansi. Makamaka, kafukufuku wawo akuti akuwoneka kuti ndi otsalira a "Protoplanet wakale," kupanga thanthwe lamlengalenga chidwi chodabwitsa chomwe chingapereke chidziwitso chosanakhalepo chokhudza zaka zoyambirira za Dzuwa Lathu. Inde, palibe china chowonjezera.
Erg Cheche 002 kapena EC 002 (monga momwe meteorite adatchulidwira) adapezeka mu Meyi chaka chatha limodzi ndi zidutswa zingapo zamwala zolemera 32 kilogalamu (mapaundi 70) munyanja yamchenga ya Erg Chech kumwera chakumadzulo kwa Algeria.
Idadziwika msanga. M'malo mokhala ndi ma meteorite omwe amapezeka, omwe amapangidwa fumbi ndi miyala zikalumikizana, kapangidwe kake kanali konyansa, kuphatikiza ma kristalo a pyroxene (mchere wopangidwa ndi calcium, magnesium ndi chitsulo). Kunali kobiriwira kwakuda kapena kwakuda, kunali vitreous sheen, yofanana ndi miyala yophulika.
Kupeza uku kukuyimira mwayi wapadera wophunzirira magawo oyambilira pakupanga mapulaneti ndikuphunzira zambiri zamomwe zinthu zidakhalira m'masiku oyambilira a Dzuwa pomwe mapulaneti omwe timawadziwa ndikuwakonda lero anali akupangidwabe.
Zambiri Zokhudza EC 002
ScienceAlert inanena kuti asteroid idanenedwa mwachizolowezi ngati yachilendo itapezeka ku Erg Check sea sea pa Meyi 2020 chifukwa, mosiyana ndi ma meteorite ambiri, idapangidwa ndi chiphalaphala, chomwe chikuwonetsa kuti chidayamba ngati gawo la protoplanet, yomwe ndi china chake ngati "mluza" wa pulaneti, womwe umayimira gawo loyambirira la kusintha kwake.
Koma monga tafotokozera m'nyuzipepala yatsopano yomwe idasindikizidwa mu "Proceedings of the National Academy of Science," kuwunika kwa kuwonongeka kwa nyukiliya kwa isotopu mchitsanzocho kukuwonetsa kuti zidapangidwa pafupifupi zaka 4,566 miliyoni zapitazo. Ndikanthawi yayitali kuposa momwe Dziko lapansi lidakhalaponso, zomwe zikutanthauza kuti mwina ndi gawo la dziko losiyana, ndipo mwina tsopano lapita.
Sizikudziwika bwinobwino, kuti protoplanet asteroid ikadachokera kuti. Komabe, popeza tsopano ndi mwala wakale kwambiri wa magmatic womwe sanadziwikebe, ofufuzawo adalemba mu pepala lawo, ndikotsimikiza kuti ipitilizidwa. Ndipo zomwe asayansi atapeza powerenga chidutswa chakalechi zitha kuwunikiranso mbiri yakale ya nyenyezi yathu.
