The Adventures of Superman (radio) home planet of Krypton is located on the far side of the sun, as opposed to a distant star system as it is in most stories. During the journey to Earth, baby Kal-el grows into an adult and emerges fully grown from his ship after it lands on Earth. He is never adopted by the Kents but immediately begins his superhero career. This was eventually retconned in later episodes to match the narrative of the comic books. This serial introduced the fictional mineral kryptonite, the radiation from which can weaken and even (in some continuities) kill Superman. Aside from giving
Superman $) and agreed to stop publishing Captain Marvel. The last Captain Marvel story from Fawcett Comics was published in September 1953. DC licensed in 1972, and eventually acquired by 1991, the intellectual property rights to Captain Marvel, today marketed under the title "Shazam!" This section details the most consistent elements of the Superman narrative in the myriad stories published since 1938. In "Action Comics" #1 (1938), Superman is born on an alien world to a technologically advanced species that resembles humans. Shortly after he is born, his planet is destroyed in a natural cataclysm, but Superman's scientist father foresaw the