"This is a story of tomorrow, or the day after tomorrow, when men have built a station in space, constructed in the form of a great wheel, and set a thousand miles out from the Earth, fixed by gravity, and turning about the world every two hours, serving a double purpose: an observation post in the heavens, and a place where a spaceship can be assembled, and then launched to explore other planets, and the vast universe itself, in the last and greatest adventure of mankind — the plunge toward the… conquest of space!"