A simile is a figure of speech that directly compares two things through some connective, usually like, as, than, or a verb such as resembles.. A simile differs from a metaphor in that the latter compares two unlike things by saying that the one thing is the other thing.
A galaxy is an enormous collection of gas, dust and billions of stars held together by gravity. One galaxy can have hundreds of billions of stars and be as large as 200,000 light years across.
milky way: The spiral-shaped galaxy in which our solar system, Sun and planet reside. History of our galaxy's name: Before telescopes, the night sky stars looked like a blurry white streak across the sky. An ancient Greek myth called it a river of milk.. The ancient Romans called it a road made of milk..