The Gemini constellation is one of the most iconic symbols in the night sky. It is composed of two stars, Castor and Pollux, which represent the twins Castor and Pollux of Greek mythology. The symbol of the Gemini has been around for thousands of years, and has come to represent many different things, from duality and balance to love and friendship. It is no surprise, then, that the Gemini symbol has become a popular choice for tattoos in recent years.