In western culture, the name "Milky Way" is derived from its appearance as a dim un-resolved "milky" glowing band arching across the night sky. The term is a translation of the Classical Latin via lactea, in turn derived from the Hellenistic Greek γαλαξίας, meaning "milky circle."

There are many other mythological origin stories that explain the various alternate names of the Milky Way in other languages.

In much of East Asia, the galaxy is referred to as the “Silver River.” A Chinese legend says that once upon a time, there was a beautiful young maiden named the Goddess Weaver, the daughter of the Celestial Queen Mother. One day, a Buffalo Boy was tending his herd when he spied the Goddess Weaver bathing in a nearby lake. The two instantly fell in love, and were soon married and produced two children. But the Celestial Queen Mother grew jealous of their love and stole the Goddess Weaver away. When the Buffalo Boy pursued them, the Queen took out a pin and drew a silver river between them so that they would be separated forever. That silver river was the Milky Way.

Armenia has a different idea about the Milky Way. There, it’s called hard goghi chanaparh, or “Straw Thief’s Way.” The story goes that the god Vahagn stole cartloads of straw Barsham, the Assyrian King, and took it to Armenia during a particularly cold winter. To get there, he fled across the Heavens and dropped some straw on the way, making the Milky Way.

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