Astro Boy, known in Japan as Mighty Atom (Japanese: 鉄腕アトム, Hepburn: Tetsuwan Atomu, lit. 'Iron-Armed Atom'), is a Japanese manga series written and illustrated by Osamu Tezuka. It was serialized in Kobunsha's Shōnen from 1952 to 1968. The 112 chapters were collected into 23 tankōbon volumes by Akita Shoten. Dark Horse Comics published an English translation in 2002. The story follows Astro Boy, an android young boy with human emotions who is created by Umataro Tenma after the recent death of his son Tobio. Eventually, Astro is sold to a robot circus run by Hamegg, but is saved from his servitude by Professor Ochanomizu. Astro becomes a surrogate son to Ochanomizu who creates a robotic family for Astro and helps him to live a normal life like an average human boy, while accompanying him on his adventures.