*X-Men #159 is a vintage US comic book from 2004, featuring the X-Men superhero team in a color format. The single issue comic book is written by Chuck Austen and illustrated by Salvador Larroca, with Larroca also serving as the cover artist. The comic book includes guest stars Sammy and the first appearance of Collective Man. The story, titled "Day of the Atom Part Three," is set in the Marvel Cinematic Universe and is suitable for a general audience.