Captain Atom is a fictional character, a comic book superhero that has existed in three basic incarnations. Created by writer Joe Gill and artist/co-writer Steve Ditko, he first appeared in Space Adventures #33 (March 1960). Captain Atom was created for Charlton Comics but was later acquired by DC Comics and revised for DC’s post-Crisis continuity. In 2011, DC Comics relaunched its superhero comics and restarted the histories of some characters from scratch, including Captain Atom, giving him a new origin, appearance and slightly altered powers. The character of Captain Atom was the inspiration for the character Doctor Manhattan who was featured in the miniseries (and later live-action film adaptation) Watchmen.