"Golden Age science fiction stressed hard science fiction, science fiction based on the hard sciences of technology and space exploration. The stories were often technological adventure stories and space opera. Golden Age science fiction communicated a sense of wonder and celebrated scientific achievement." Quote source: SF subgenres: What is Golden Age science fiction? by Carma Spence, Dec. 24, 2010 examiner.comhttp://www.examiner.com/article/sf-subgenres-what-is-golden-age-science-fiction