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
Aurora (fictional planet) Aurora (fictional planet) Aurora is a fictional planet in Isaac Asimov's "Robot" series. It was the first world settled by the Spacers, originally named 'New Earth'; it was located 3.7 parsecs (12 light years) from Earth. In Asimov's fictional universe, the innermost planet orbiting Tau Ceti was mankind's very first extrasolar planetary settlement, established in 2065. Originally named "New Earth", in later millennia the planet would be renamed "Aurora", which means "dawn", to signify the dawning of a new age for the Spacer culture. It was also considered the strongest of the Spacer worlds, and was their "de facto" leader.