It was 1958 and the race for space was on, DC Comics was on a quest of it's own--looking for new characteres to use in it's preeminent "try-out" book, Showcase. Adam Strange made his debut in Showcase #17. After three appearances, Adam moved to Mystery in Space with #53 and continued for a run of over 50 issues.
Collects Showcase #17-19 and Mystery in Space (Vol 1) #53-65.