Question: What was originally the primary focus of the sci-fi magazine Starlog, which included among its editors Robert Greenberg?
Sentence (from "Robert Greenberger"): Robert "Bob" Greenberger (born July 24, 1958) is an American who is known for his work as an editor for "Comics Scene", "Starlog", and "Weekly World News", as well as holding executive positions at both Marvel Comics and DC Comics.
Relevant evidence: Yes