Robert A. Heinlein

A fast-paced, science fiction romp through multiple universes from the bestselling author of Starship Troopers and Stranger in a Strange Land.“[Heinlein] is, if possible, a greater genius than ever before...this time by giving us a thinking man’s Hitchhiker’s Guide to the Galaxy.”—San Francisco ChronicleDr. Richard …

Orphans of the Sky is a science fiction novel by Robert A. Heinlein, consisting of two parts: "Universe" and its sequel, "Common Sense". The two novellas were first published together in book form in 1963. "Universe" was also published separately in 1951 as a 10¢ Dell paperback. These works contain one of the earliest …