<prompt> Bhala ukuqhubeka kwalesi sigaba - Cishe ngemva kweminyaka eyishumi, phakathi nalokho okwabizwa ngokuthi iNgxoxo-mpikiswano Enkulu  <response>: , uHubble noSlipher bathola ukwanda kwendawo yonke ngawo-1920 ngokulinganisa ukushintshashintsha kwe-Doppler spectra kusuka kuma-galactic nebulae. Besebenzisa inkolelo-mbono ka-Einstein yokuhlobana kwezinto, uLemaître noGamow basungula lokho okwakuyokwaziwa ngokuthi inkolelo-mbono yokuqhuma okukhulu. Umbono ophikisayo, obizwa ngokuthi umbono wesimo esizinzile waqanjwa uHoyle, uGold, uNarlikar noBondi. 