Who Is Yelena Belova, Marvel's Other Black Widow?

The Black Widow codename may be all but synonymous with Natasha Romanoff thanks to Scarlett Johansson and the Marvel Cinematic Universe, but with the upcoming Black Widow solo movie, and Natasha's rather unfortunate (and emphatically final) demise in Avengers: Endgame, the status quo is about to be shaken up in a major way. Thankfully, the history of Black Widow over in Marvel's comics is full of weird loopholes, clones, and top-secret spy training programs, giving us all kinds of wiggle room wh