The I'noxians were a race of advanced artificial intelligences, living in a sort of collective consciousness, made from a substance called N-10. They were created on the planet I'noxia to observe doomed worlds, such as Krypton, and recreate them - to preserve them for posterity. However, Brainiac's influence fell over the planet, and forced the I'noxian collective to help the Cyborg Superman to entrap Supergirl. (Supergirl: "Out of the Past")