Callisto

Callisto is the final Galilean Moon.

Personality
Callisto is blind, leading to her being extremely cautious and anxious. She trusts her brother, Ganymede, with her life. Some planets think she lost her sight in an impact, when in reality, she was blind from the start.

Appearance
Callisto is a small dark brown sphere with a large amount of craters on her surface. She has gray and white eyes, due to her blindness.