Blackhawk #156

Blackhawk #156 throws the squadron straight into an otherworldly crisis with "The Peril of the Plutonian Raider," and the cover — penciled by Dick Dillin and inked by Sheldon Moldoff — lays out the threat in vivid 1961 style: a hulking alien in a crimson spacesuit and bubble helmet fires multicolored rainbow beams from its belt, freezing several Blackhawk team members mid-stride as they cry out in helpless alarm. It's a wonderfully tense sci-fi scenario that captures everything readers loved about the era's adventure comics — fearless heroes up against technology far beyond their own.