Origin of Superman early issues of the series, it was unclear if the story was intended to be the new origin of the mainstream Superman or the beginnings of a new universe, similar to Marvel's Ultimate line. DC later confirmed that "Birthright" was the new official origin of Superman, and it was embedded into the Superman fiction in "Superman" (vol. 2) #200. Krypton was redesigned again in "Birthright", portrayed as a society that used its advanced science and technology to make its planet into a paradise. Clark Kent respected his alien heritage and designed his Superman costume based on images of Kryptonian culture
Origin of Superman matures during the flight and emerges full-grown as an adult when he lands on Earth. He is greeted by a man and a boy who give him the idea of disguising himself as Clark Kent, after which he looks for a job at the Daily Planet. Among other concepts and characters, the radio program introduced kryptonite into the Superman mythology. These fragments of radioactive debris from Superman's home planet were created to allow actor Bud Collyer the occasional time off from recording, as Superman periodically succumbed to the baleful rays and be absent for some episodes. Kryptonite was incorporated into