Ku dhammee weedha soo socota: Aragtida ah in burburkii weynaa uu ka dhashay kormeer lagu sameeyay qaab dhismeedka caalamka iyo fikrado cilmiyeedyo. Sanadkii 1912, Vesto Slipher wuxuu cabiray wareejintii ugu horreysay ee Doppler ee "Nebula spiral" (Nebula spiral waa erey duugoobay oo loogu talagalay galaxiyada spiral), wuxuuna si dhakhso leh u ogaaday in ku dhowaad dhammaan nebulayaasha noocan oo kale ah ay ka fogaadeen Dhulka. ma uusan fahmin macnaha guud ee arintan, run ahaantiina waqtigaasi waxa uu ahaa
Waxaa la is waydiinayaa ma xidigahaasi waxay ahaayeen "universes-ka jasiiradaha ah" oo ka baxsan Milky Way. Toban sano ka dib, Alexander Friedmann, oo Ruush ah cilmiga caalamka iyo xisaabta, wuxuu ka soo saaray isle'egaha Friedmann ee Einstein field equations, isagoo tusay in caalamku uu fidayo si ka duwan qaabka caalamka ee joogtada ah ee uu ku dooday Albert Einstein waqtigaas.