Cika wannan magana: Milky Way ita ce galaxy wanda ya hada da tsarin hasken rana, tare da sunan da ke bayyana bayyanar galaxy daga Duniya: wani haske mai haske wanda aka gani a cikin dare na dare wanda ya samo asali daga taurari wanda ba za a iya rarrabe su da ido ba. Kalmar "Milky Way" fassara ce ta Latin ', daga Girkanci ('), ma'ana "da'irar Milky". Daga Duniya, Milky Way ya bayyana a matsayin band saboda ana kallon tsarin sa mai siffar faifai daga ciki. Galileo Galilei ya fara warware rukunin haske zuwa taurari daban-daban tare da na'urar hangen nesa a 1610. Har zuwa farkon shekarun 1920, yawancin masana taurari sun yi tunanin cewa Milky Way yana dauke da dukkan taurari a cikin Sararin samaniya. Bayan 1920
Babban muhawara tsakanin masana taurari Harlow Shapley da Heber Curtis, lura da Edwin Hubble ya nuna cewa Milky Way yana daya daga cikin taurari da yawa.