Details taken from Table of Contents.  | 
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 Special “AI Discovery” issue. Details taken from Table of Contents.  | 
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 Fanzine created on the spot by attendees at the Compute for Charity event in 1990.  | 
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 Semi-professional magazine.  | 
  
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 This magazine was a popular survey of space research that occasionally printed fiction. This title should not be confused with a later magazine of the same name published in New York. Only the fiction is listed below.  | 
  
 The first issue exists in two states. It was originally printed with no cover illustration, but was later reprinted with a cover by Harry Lang as the Fall 1957 issue. The story listed below is not in the reprint edition.  | 
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 Details taken from an online copy at fanac.org.  | 
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 Details taken from an online copy at fanac.org.  | 
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 Issue partially indexed.  | 
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 There was a British reprint edition of this magazine published by Archer Press Ltd. Eight issues were printed between December 1952 and August 1953.  | 
  
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