<prompt> Qedela umusho olandelayo: I-cosmology yesayensi yanamuhla ngokuvamile ibhekwa njengokuqala ngo-1917 ngokushicilelwa kuka-Albert Einstein kokuguqulwa kwakhe kokugcina kwe-General Relativity ephepheni elithi Cosmological Considerations of the General Theory of Relativity nakuba leli phepha lalingatholakali kabanzi ngaphandle kweJalimane kuze kube sekupheleni kweMpi Yezwe I. Imfundiso yokuhlobana okuvamile yabangela izazi zezinkanyezi ezinjengoWillem de Sitter, uKarl Schwarzschild, no-Arthur Eddington ukuba zihlole imiphumela yayo yezinkanyezi, okwandisa ikhono lezazi zezinkanyezi lokufunda izinto ezikude kakhulu. Ososayensi baqala ukushintsha ukucabanga kokuthi iNdawo Yonke yayingaguquguquki futhi ingashintshi. Ngo-1922 uAlexander Friedmann wethula umqondo wendawo yonke ekhulayo equkethe izinto ezihambayo. Cishe ngesikhathi esifanayo 1917 kuya ku-1922 i-  <response>: Kwaba nempikiswano enkulu, izazi zezinkanyezi zakuqala ezinjengoHeber Curtis noErnst Öpik zathi ezinye zezinkanyezi ezincane ezibonwa ngezibuko - mkhathi ziyimithala ehlukile ekude kakhulu neyethu. 