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,
Life on Another Planet the company. A dying biologist, Dr.Crowben, decides to push on the creation of plant-human hybrids biologically suited to the planet environment, which also falls within the scope of Multinational's plan. Meanwhile, the two surviving astrophysicists have been abducted by the KGB, and Bludd learns that Russians plan to answer to the signal using neutrinos. The international situation further complicates when a small fictional African state, Sidiami, burdened by debts with other countries, decides to "secede from planet Earth" and declares itself a colony of the planet around Barnard. The "Star People" decide to relocate in Sidiami, and the Multinational starts