Pfupisa nyaya yacho:  Anenge makore mabhiriyoni 4,45 apfuura, makore mamiriyoni 150 pashure pokunge gadziriro yezuva yaumbwa, Pasi rakarohwa nechinhu chakakura seMars chinonzi Theia. Kubonderana kwacho kwakasika mwedzi, asi gakava rave riripo pamusoro pokuti chii chaizvoizvo chakaitika mukati mechiitiko ichi - uye chakavanzika chakaramba chiripo pamusoro pokuti nei mwedzi nePasi zvakafanana zvikuru mukuumbwa kwazvo. Zvino, fundo dzinopesana dzakagovera rondedzero mbiri dzakasiyana - imwe yokuti Theia yakanga yakafanana nepasi, uye imwe yokuti pasi nomwedzi zvakaputirwa nemarara pashure pokurovera. Zvidzidzo zvitatu zvakagovera rondedzero dzakasiyana-siyana dzechakaitika pashure pokunge Nyika yarohwa nechinhu chakakura seMars chinonzi Theia, makore mabhiriyoni 4,45 apfuura. Chinobvumwa, kunyanguvezvo, ndechokuti kugunzva kwacho kwakaitika chaizvoizvo (mufananidzo wemifananidzo unoratidzwa). Izvi zvinozivikanwa sefungidziro yokuvhiringidzwa kukuru. Dzidziso mbiri idzi dzinooneka mumagazini inonzi Nature dzichitevera zvidzidzo zvitatu - zviviri zvinotsigira dzidziso yokuti <unk>yakafanana neNyika<unk>, uye imwe ichitsigira <unk>mvura yemarara<unk>. Mune iyi rondedzero yokupedzisira, boka ravasayendisiti paYunivhesiti yeMaryland rakati kurovera kwaTheia nePasi kwakanga kwakasimba kwazvo, gore rezvimedu rakaguma rakasanganiswa zvakakwana risati ragadzikana ndokuumba mwedzi. Vanzveri vazhinji vanodavira kuti mwedzi wakaumbwa pashure pokunge Pasi rarohwa nepuraneti yakakura seMars mabhiriyoni amakore akapfuura. Iyi inonzi pfungwa yokurovera kukuru. Kufungidzira kwacho kunotaura kuti mwedzi imarara akasiyiwa pashure pokurovera kusina kunanga pakati pepasi redu nomuviri womuchadenga anenge makore mabhiriyoni 4,5 akapfuura. Muviri unobonderana pane dzimwe nguva unonzi Theia, pashure paTitan wokuGirisi wenhema uyo akanga ari amai vaSelene, mwarikadzi weMwedzi. Asi chimwe chakavanzika chakaramba chiripo, chakaratidzwa nematombo akaunzwa nevafambisi vengarava dzeApollo kubva kumwedzi - nei mwedzi nepasi zvakafanana zvikuru mukuumbwa kwazvo? Dzidziso dzakasiyana-siyana dzakabuda mumakore akapfuura kuti dzitsanangure kufanana kwakaita zvigunwe zvePasi neZuva. Zvichida kurovera kwacho kwakaita kuti pave negore guru remarara rakavhenganiswa nePasi uye rakazoita kuti pave nemwedzi. Kana kuti Theia...
Mwedzi wakaumbwa apo muviri wakakura seMars unonzi Theia wakaurova kare. Asi hapana anoziva kuti nei mwedzi nePasi zvakafanana pakuumbwa. Vatsvakurudzi veYunivhesiti yeMaryland vanoti gore rezvimedu rakayerera panyika. Asi Israel Institute of Technology inoti impactor yakanga yakafanana nepasi.