Star sign represented by twins. The twins Castor and Pollux were inseparable brothers, their bond was so strong that when Castor died, Zeus placed them both in the sky as stars.

Example

1. Gemini is also a name for a type of spacecraft.
2. The twins Castor and Pollux are associated with the Gemini constellation.
3. Gemini is the third sign of the zodiac, ruled by the planet Mercury.