Isaac Asimov

A description of the sun, the star of our solar system, which includes information on its origin, physical composition, and characteristics, as well as on studies made of the sun by instruments and satellites.

Introduces the bodies in space also known as planetoids, minor planets, or when they stray from their paths, meteoroids.

"In this classic work of alternate history, acclaimed Hugo Award-winning author Harry Turtledove explores a different America in which a primitive race of Neanderthals are enslaved by Homo sapiens from across the ocean What if mankind's "missing link," the apelike Homo erectus, had survived to dominate a North American continent where woolly mammoths and saber-toothed tigers still prowled, while the more advanced Homo sapiens built their civilizations...

Isaac Asimov's Foundation Trilogy is one of the high-water marks of science fiction. It is the monumental story of a Galactic Empire in decline, and the secret society of scientists who seek to shorten the inevitable Dark Age with the science of psychohistory. Now, with the permission -- and blessing -- of the Asimov estate, the epic saga continues. Fate -- and a cruel Emperor's arbitrary power -- have thrust Hari Seldon into the First Ministership...

Fearing a violent confrontation between Earthmen and Spacers, Detective Baley and his new partner, a robot, investigate the murder of a Spacetown scientist

Traces the history of Constantinople and the Byzantine Empire from the seventh century B.C. to the fifteenth century A.D. and discusses the influence of that Empire on the civilization of Europe.