During the late 1920s and early 1930s, when the stories were printed in science-fiction magazines, the stories were often referred to as "super-science epics".
Namun, pada akhir tahun 1920-an dan awal tahun 1930-an ketika cerita-cerita itu dicetak dalam majalah fiksi ilmiah, ceritanya sering dirujuk sebagai "super-science epics".