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 was discovered and adopted by Jonathan and Martha Kent, a farming couple. They named him Clark. Clark displayed various superhuman abilities such as incredible strength and impervious skin, and his foster parents advised him to use his gifts for the benefit of humanity. Clark Kent resides in the fictional American city of Metropolis, where he works as a journalist for the "Daily Planet", a newspaper. To protect his privacy, he changes into a colorful costume and uses the alias "Superman" when fighting crime. Superman's love interest is his fellow journalist Lois Lane, and his classic archenemy is the genius inventor