Stellar's mother was shopping with her daughter on Iceworld. She lost Stellar when the little girl wandered off, resulting in Stellar and her mother being one of the few survivors on that planet.
Stellar's mother complained to Ace about lumps in her ice cream, resulting Ace pouring the ice cream over her head in Iceworld’s ice cream parlour. Anderson assured her that the ice cream didn't stain. (TV: Dragonfire)