Famous for Steve Ditko's stories, the appearances of Blue Beetle, and the first appearnce of Captain Atom (the later inspiration for Watchmen's Doctor Manhattan), Space Adventures, not to be confused with Strange Adventures, took a winding and complicated publishing journey. The 1950s version of the title, first published under the Capitol imprint, actually ran for four years before becoming War at Sea with #22 (where it would continue into the 1960s). But then Charlton renamed Nyoka, Jungle Girl Space Adventures with its 23rd issue — which is why no Space Adventures #22 exists!

    Sales were low when Charlton began reporting sales figures in the 1960s — at just over 100,000 copies, some of the lowest in comics — but that was true for most of Charlton's line, and at least Space Adventures' sales look to have held up as it went along. The publisher's sales efforts and distribution was such that Space Adventures had only 25 subscribers in 1963. Charlton folded the title in 1964, with Captain Atom, who first appeared in #33, migrating to  Strange Suspense Stories, finally taking that title over completely in 1965. Charlton revived the title briefly in the late 1960s and again in the late 1970s.