Justice League America #67

The cover of Justice League America #67 sets the tone perfectly for an "Alien Terror!" story: Blue Beetle charges toward the reader dripping in neon-green alien goo, quipping "Eeeee-ew! Where'd all this GOO come from?!" while Booster Gold, Black Canary, and Doctor Light recoil in wide-eyed alarm behind him. Dan Jurgens and Rick Burchett deliver a cover that's equal parts gross-out fun and genuine tension, balancing the team's colorful personalities against what appears to be a thoroughly unpleasant extraterrestrial encounter. It's a snapshot of the early-'90s JLA at its most entertaining — a superhero team that could make you laugh and squirm at the same time.