Analog Science Fiction and Fact is an American science-fiction magazine which has been published under several different titles since 1930. The first issue, titled Astounding Stories of Super-Science, was dated January 1930, and was published by William Clayton. and edited by Harry Bates. Clayton went bankrupt in 1933 and the title was sold to Street & Smith. The new editor was F. Orlin Tremaine who soon made Astounding the leading magazine in the nascent pulp science fiction field, publishing well-regarded stories such as Jack Williamson's Legion of Space and John W. Campbell's "Twilight". At the end of 1937 Campbell took over editorial duties under Tremaine's supervision, and the following year Tremaine was let go, giving Campbell more independence. Over the next few years Campbell publi