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
It's Superman! causes a Lexbot to activate from inside the trunk, and attack Superman. After the Lexbot goes haywire, destroying city blocks that leaves several building on fire. a bruised and exhausted Superman finally destroys the robot and escapes when police arrive. Lois is “introduced” to Superman, while they find a piece of the robot with the LUTHOR Corp. logo on it. Thanks to both that and Clark's article on Superman himself; Lex Luthor is called to be arrested, while Clark gets a job at the Daily Planet. Before he is arrested, Superman meets with Lex at his home; as Lex talks