Publication history of Superman Superman titles have followed two major story arcs. "Action Comics" deals with Superman and wife Lois adopting a Kryptonian child who is revealed to be the child of General Zod. After resolving this arc, Superman has dealt with the return of one of his most dangerous villains, Brainiac which resulted in the arrival of thousands of Kryptonians on Earth and sadly the death of his adoptive father. In "New Krypton", the Kryptonians create a new planet, New Krypton, and raise it opposite Earth's place in the solar system. In "", Superman decides to leave Earth to live among the Kryptonians,
Aurora (fictional planet) Aurora at its height had a population of 200 million humans and 10 billion robots. The head of its planetary government was called the Chairman. The largest city on the planet was Eos (which also means "dawn"), the administrative and robotic center of Aurora, where Han Fastolfe and Gladia Solaria lived. The University of Eos and the Auroran Robotics Institute were both located within Eos. We see the planet at its height in "The Robots of Dawn". In "Prelude to Foundation", we learn that at least some of its inhabitants emigrated to Trantor, settling in the Mycogen Sector. The descendants