Whakarāpopototia te tuhinga:  Tērā pea i tūtohutia e to tatou Ao rangatahi ki tētahi tinana e rite ana ki te aorangi o Mercury, e ai ki tētahi pepa hou. Ka taea e tēnei takahanga whakaharahara te whakamārama he aha te take he pūngāwerewere wera o tō tātou aorangi e homai ana i tōna āpure autō ki a ia. Ka taea hoki e tēnei te whakamārama he aha ētahi mea whenua onge i roto i te kākahu o te Ao e kore e puta mai i ētahi atu kōhatu hanga o te ao - ngā kōhatu. E ai ki ngā pūtaiao o Oxford, he tinana rite ki a Mercury i patua te Whenua rangatahi (e whakaaturia ana te whakaahua a te kaitoi). Tērā pea ko te ahanoa te pūtake wera mō te pū o te aorangi. Tērā pea nā taua ahanoa anō i waihanga te marama. Ka whakamārama hoki i te takenga mai o ētahi huānga whenua onge. Ko te rangahau, e rua nga kaipūtaiao o te Whare Wānanga o Oxford, i whakaputaina i roto i te niupepa Nature. Ko tā mātou ariā o nāianei mō te hanganga o te Ao, he nui ake ngā aorangi me ētahi atu ahanoa e kohikohi ana ki tētahi tinana kotahi. Heoi, kāore e taea e tēnei tauira te whakamārama i ahu mai te pūtake wera o te pū o te Ao - ā, i te mutunga, ko tōna āpure ā-manatō. I tua atu, he nui ake te ōwehenga o ngā huānga whenua onge o te samarium me te neodymium i te nuinga o ngā kōhatu - e tohu ana he nui ake te pānga ki te hanganga o te Ao i te whakaaro tuatahi. Hei whakatika i tēnei rerekētanga, e whakapono ana ngā kaipūtaiao i patua te Ao e tētahi tinana e rite ana ki te rahi o Mars - engari he rite ki a Mercury i tōna hanganga - i te tīmatanga o tōna oranga. Tērā pea i tupu tēnei tata ki te 4.5 piriona tau ki muri. He nui te huka i roto i te tinana, engari he iti rawa te hāora - pērā tonu ki a Mercury. He tokomaha nga kairangahau e whakapono ana i hangaia te marama i muri i te pakaru o te Ao e tetahi aorangi te rahi o Mars i nga piriona tau ki muri. Ka kīia tēnei ko te ariā pānga nui. E kī ana te whakapae ko te marama he paru i mahue i muri i te tūtukitanga tōraro i waenganui i tō tātou aorangi me tētahi tinana ātaahua tata ki te 4.5 piriona tau ki muri. I ētahi wā e kīia ana te tinana e tukituki ana ko Theia, i muri i te Titan Kariki pakiwaitara ko ia te whaea o Selene, te atua wahine o te Marama. Engari kotahi tonu te mea ngaro, i whakakitea e nga toka i kawea mai e nga kaiwhaiwhai o Apollo...
E ai ki ngā pūtaiao o Oxford he tinana rite ki a Mercury i pā ki te Ao rangatahi. Ko te ahanoa rahi o Mars te pūtake wera mō tō tātou aorangi. Ko te ahanoa taua pea te take i hanga ai te marama. Ka whakamārama hoki i te takenga mai o ētahi huānga whenua onge.