A British reprint edition of the US Galaxy Science Fiction magazine, it was first published between 1953 and 1962.
From 1953 to 1962 the magazine was published by Strato Publications (94 issues). Up February 1959 (no 72) each issue was a shortened version of the US edition, with one or more stories or features being cut. From no. 72 Strato reprinted the full US issue with a different title page, and from issue 80 the US edition was used with a variant cover.
In 1967 Gold Star Publications revived the magazine brielfy, publishing five bi-monthly issues which were identical to the US edition dated six months previously.
Universal-Tandem Publishing Co Ltd published 25 issues of Galaxy in the UK between 1972 and 1975.
Galactic Central Publications indicates that another 11 issues of the UK edition were published between September 1969 and August 1970 (the covers are reproduced) but does not provide any details of who published it. The extensive Wikipedia entry (as of 2 July 2012) does not mention the 1969-1970 issues at all.