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
Daily Planet It was not until later years that the fictional paper became the "Daily Planet." (The real-world newspaper was called the "Evening Star" prior to 1899, the "Toronto Daily Star" is now known as the "Toronto Star".) While choosing a name for the fictitious newspaper, consideration was given to combining the names of "The Globe and Mail" and the "Daily Star" to become "The Daily Globe". But when the comic strip appeared, the newspaper's name was permanently made the "Daily Planet" to avoid a name conflict with real newspapers. In "Superman" (volume 1) #5 (Summer 1940), the publisher of the "Daily