De revolutionibus orbium coelestium divided into six "books" (sections or parts), following closely the layout of Ptolemy's "Almagest" which it updated and replaced: Copernicus argued that the universe comprised eight spheres. The outermost consisted of motionless, fixed stars, with the Sun motionless at the center. The known planets revolved about the Sun, each in its own sphere, in the order: Mercury, Venus, Earth, Mars, Jupiter, Saturn. The Moon, however, revolved in its sphere around the Earth. What appeared to be the daily revolution of the Sun and fixed stars around the Earth was actually the Earth's daily rotation on its own axis. Copernicus adhered
Superman and the Legion of Super-Heroes After blacking out, Superman awakens and is confronted by Brainiac 5, who reveals that his dictatorship of the planet is fabricated as a way to keep Colu, which is the strategic beachhead of a proposed United Planets attack on Earth, from completing their plans. On Earth, Chameleon Girl sneaks into the Justice League's headquarters, and discovers that they captured Sun Boy and placed him into a machine that uses his powers to tint the sun red. Superman, Brainiac 5, and Colossal Boy find the other Legionnaires and the crystal data tablet containing the false claims regarding Superman's origins. Earth-Man reveals