Galaxy Science Fiction was an American digest-size science fiction magazine, published from 1950 to 1980. It was founded by an Italian company, World Editions, which was looking to break in to the American market. World Editions hired as editor H. L. Gold, who rapidly made Galaxy the leading science fiction (sf) magazine of its time, focusing on stories about social issues rather than technology.
Gold published many notable stories during his tenure, including Ray Bradbury’s “The Fireman”, later expanded as Fahrenheit 451; Robert A. Heinlein’s The Puppet Masters; and Alfred Bester’s The Demolished Man. In 1952, the magazine was acquired by Robert Guinn, its printer. By the late 1950s, Frederik Pohl was helping Gold with most aspects of the magazine’s production. When Gold’s health worsened, Pohl took over as editor, starting officially at the end of 1961, though he had been doing the majority of the production work for some time. (from Wikipedia)