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
Cyborg Superman Cyborg Superman Cyborg Superman is a persona that has been used by two fictional characters in the DC Universe, both of which are supervillains that appear in comic books published by DC Comics. Hank Henshaw was an astronaut at NASA until a solar flare hit his space shuttle during an experiment in space, damaging the ship and the crew. Henshaw and the crew found that their bodies had begun to mutate and, after returning to Earth, Henshaw's entire crew (including his wife) eventually committed suicide. After learning that Superman had thrown the Eradicator into the sun in a battle during