A postcard from the Grand Ganymede Resort & Casino Gift Shop (ca. 4120).
In it you can see the character “Astro-Nora” (mascot of the now defunct commercial spaceflight company “Astro-Travel 9000”) exploring Ganymede’s caves. The tentacle monster, “Gorgor” is a local legend that arose during the times of terraforming, circa 3900. There is no proof of its existence.