A species who survived the loss of their homeworld by sleeping in cryogenic stasis inside a moon-sized ship, protected in 3190 by the Qowat Milat sister J'Vini.
The Abronians are a non-humanoid species who fled their dying world aboard a vast vessel disguised as a moon. Its systems failed and left them frozen in stasis for centuries with nobody to wake them. They feature in the Discovery episode Choose to Live.
The Romulan warrior nun J'Vini took up their protection as her lost cause. She raided Starfleet ships for dilithium to restart the engines and killed an officer while doing so. Michael Burnham, Sylvia Tilly and Gabrielle Burnham track her to the moon, where they find the sleepers and the bodies of some whose pods had been robbed by grave hunters for the latinum inside.
Burnham repairs the fault that kept the pods sealed, and the Abronians wake and leave to find a new home. J'Vini gives herself up and is handed to Ni'Var for judgement.