The Guardians of the Galaxy are a fictional superhero team that has starred in the comic book series of the same name, published by Marvel Comics. The original team, based in an alternate universe within the Marvel Comics continuity, debuted in the comic book Marvel Super-Heroes #18 (January 1969). Another team, this time based in the mainstream Marvel Universe, debuted in the comic Guardians of the Galaxy (vol. 2) #1 (May 2008).