Ali Baba (Enceladus)

Hero of tale who found a great treasure owned by 40 thieves.

Ali Baba is a large crater in the northern hemisphere of Saturn's moon Enceladus. It is located near the craters Aladdin and Samad. Ali Baba has a large dome in its interior, suggesting the crater has undergone viscous relaxation. (wikipedia entry)

A crater is a circular depression likely created by an impact event. On Enceladus they are named after people and places from Burton's Arabian Nights.