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
The Reign of the Superman The Reign of the Superman "The Reign of the Superman" (January 1933) is a short story written by Jerry Siegel and illustrated by Joe Shuster. It was the writer/artist duo's first published use of the name "Superman", which they later applied to their archetypal fictional superhero. The title character of this story is a telepathic villain, rather than a physically powerful hero like the better-known character. (Although the name is hyphenated between syllables due to it being broken between pages on the story's opening spread, it is spelled "Superman" in the magazine's table of contents and in the story's text.)