Miss Martian introduced Baby to Superboy, Beast Boy and J'emm J'axx, who then took the new ship to the Royal Palace. En route, Conner noted that Baby appeared to be ticklish. After finishing at the Palace, Baby took the group to pick up M'aatt M'orzz and B'arzz O'oomm, before heading to Hollow Hill. En route, the group discussed the ritual building of the wedding altar they were about to emark on. When Gar expressed concern that Conner was vulnerbale without getting more sunlight, Baby deployed canons on her wings in response.
At the Hollow Hill, Garfield hallucinated that Brion Markov was attempting to kill Conner, so ran off with him to the surface. The rest of the group pursued in Baby. They found Conner, following what they thought was Garfield, and J'emm left the ship to find Gar, who was then brought aboard Baby.
Later, at the M'orzz house, a recovered Garfield expressed sadness that Bio-Ship was retiring, and welcomed Baby.
Later, M'gann and J'onn finished loading Baby with supplies for the trip back to Earth. Em'ree J'onzz came aboard and asked to join the journey. J'onn signaled that they were ready, and Baby took off.
En route to Earth, Em'ree was increasingly concerned that M'gann was continuing to shut J'onn and herself out ever since Conner died. Later, she deliberately provoked an argument with M'gann, successfully getting her to open up. Moments later, a school bus materialized near Baby and narrowly avoided hitting her before disappearing. Baby reported the near collision to her occupants, which they dismissed as a false alarm in confusion.
When they arrived at Planet Circle, Baby immediately fired on Zod and Superboy, who was still under Zod's thrall. Baby dropped off her crew and continued to fight, taking on Lor-Zod, who eventually threw her into a Chicken Whizee shop. Ultimately, Zod and his followers were defeated, and Superboy's mind restored.
Baby took the form of a white limousine to carry M'gann to her wedding. After M'gann got out, Baby reverted to her normal flight form and watched the ceremony with her mother.
Powers and abilities
Flight: Baby is capable of flight both in-atmosphere and the vacuum of space.
Shape-shifting: Baby can change her form, shifting from an egg-like rest form to her ship form, as well a more minor changes, such as opening and closing hatches and generating canons on her wings.
Weapons: Baby can form a pair of canons on her wings.
Telepathy: Baby is able to communicate psychically with other Bio-Ships, and was able to hear her mother's psychic scream of pain over great distances.