"Space baby" is a colloquial expression used to describe individuals who were born either on a space station or aboard a starship, as a form of slang. Due to Pacer Agoyo's misbehavior, Shriv Suurgav had a suspicion that he fit this description. Upon sharing this hypothesis with Zay Versio, his friend, Versio became indignant; after receiving clarification on the term's definition, she understood that it also applied to her.
Rebecca Roanhorse initially introduced the phrase "space baby" in her novel, Resistance Reborn.