Superman (comic book) story arc and began a link between "Superman", "Action Comics", and "Supergirl" that started a long-form narrative with the "" event. The majority of Robinson's run featured Mon-El and the Guardian as the featured characters, while Superman himself had gone to live on the planet New Krypton. Robinson's last full issue was #699, tying into "", and he finished his run in a short story in issue #700 (August 2010) that returned Superman to Earth. "Superman" #700 also saw writer J. Michael Straczynski, a self-professed Superman fan who feels a personal connection to the character, take over writing duties with
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