Journey into Mystery #120

Published by Marvel Comics in September 1965, Journey into Mystery #120 stands as a significant milestone in the Silver Age of comics. It features the continuing adventures of Thor, written by Stan Lee and illustrated by Jack Kirby, who were then in the midst of expanding the mythological scope of the character. This specific issue is particularly noted for featuring a cover and story that lean heavily into the cosmic and operatic aesthetic that defined Kirby's legendary tenure on the title.

The story, 'The Power of the Plutonian Man!', showcases the creative partnership between Lee and Kirby, who sought to blend traditional superhero tropes with grandiose, mythic storytelling. At the time of its release, the comic was well-received as part of the broader Marvel expansion, which was successfully shifting the medium toward more complex characterizations. It remains a classic example of the mid-1960s Marvel style, characterized by dense layouts and the dynamic, kinetic energy that became a hallmark of Kirby's illustrative work.