Thor and Captain America Have 'Earth's Mightiest Kiss'

Marvel Entertainment made waves Friday when it tweeted an image of two of its iconic superheroes kissing.

The comic book titan teased an illustration of Thor and Captain America in a mid-air embrace, previewing an upcoming Avengers comic book. The photo is captioned: "Earth's mightiest kiss."

The image is part of Marvel's All-New, All-Different Avengers, a comic book universe that seeks to be more inclusive in its character representations. In this universe, Thor is a woman and Captain America is black.

The characters are widely known from the Avengers film franchise, in which they are portrayed by white male actors, Chris Hemsworth and Chris Evans.