The first Golden Age of Science Fiction—often recognized as the period from 1938 to 1946—was an era during which the science fiction genre gained wide public attention and many classic science fiction stories were published. In the history of science fiction, the Golden Age follows the "pulp era" of the 1920s and 1930s, and precedes New Wave science fiction of the 1960s and 1970s. The 1950s are a transitional period in this scheme; however, Robert Silverberg, who came of age in the 1950s, saw that decade as the true Golden Age.
According to historian Adam Roberts, "the phrase Golden Age valorises a particular sort of writing: 'Hard SF', linear narratives, heroes solving problems or countering threats in a space-opera or technological-adventure idiom."
One leading influence on the creation of the Golden age was John W. Campbell, who became legendary in the genre as an editor and publisher of science fiction magazines, including Astounding Science Fiction, to the point where Isaac Asimov stated that "...in the 1940s, (Campbell) dominated the field to the point where to many seemed all of science fiction." Under Campbell's editorship, science fiction developed more realism and psychological depth to characterization than it exhibited in the Gernsbackian "super science" era. The focus shifted from the gizmo itself to the characters using the gizmo.
Most fans agree that the Golden Age began around 1938-39. The July 1939 issue of Astounding Science Fiction is frequently cited as the precise start of the Golden Age. It contains the first published story by A. E. van Vogt (the first part of The Voyage of the Space Beagle) and first appearance of Isaac Asimov ("Trends") in "Astounding". (Isaac Asimov was first published a few months earlier in the March edition of Amazing Stories.) Science fiction writer John C. Wright said of Van Vogt's story, "This one started it all." The August issue of the same magazine contained the first published story by Robert A. Heinlein ("Life-Line").