Invader Jenny, the "Infinties" stories are the Star Wars version of Marvel's popular old "What If?" comic book. Showing what happens in a familiar plotline if one zigs instead of zags. I found the one where Luke's torpedo didn't stop the Death Star, and The Yavin base gets it pretty cool. I think Lucas was "inspired" by Yoda's larger role in that storyline while writing Episode III.

Ironically, Marvel SW fans back in the day begged for a "What If?" Star Wars story or two, (that and having Vader meet up with Dr. Doom!) but Lucasfilm apparently shot those ideas down.