The overwhelming majority of all the logos you'll see in your life contain a direct reference to what a company's name is, or what it does. That means you'll generally see the name of the company spelled out in lettering, or an image which shows something from the company's world. Why is it, then, that Japanese car company Subaru is represented by nothing more than six stylized stars on a background of midnight blue?
You have to know a thing or two about astronomy to get to the bottom of this one. 'Subaru' is what the Japanese call the cluster of stars that westerners know better as 'Pleiades,' or to give it its more commonly-used nickname, the Seven Sisters. The legend of the Seven Sisters says that one of the stars is always invisible to the naked eye, and so there are only six stars on the logo.