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 character and cast the more mild-mannered Clark Kent that is traditionally associated with the character. Clark is a reporter at the Metropolis newspaper the "Daily Planet", which allows him to keep track of events in which he might be able to help. Fellow reporter Lois Lane is often the object of Clark's affection. Lois's affection for Superman and rejection of Clark is a recurring theme in Superman comics and media adaptations. In the Modern Age comics Superman considers himself Clark Kent first and Superman second. Before the Crisis on Infinite Earths (i.e., DC comics published up to the early 1980s), the attitude was