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Orphans of the Sky is a science fiction novel by American writer 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... Wikipedia
Originally published: 1963
Author: Robert A. Heinlein
Followed by: Methuselah's Children
Genres: Science fiction, Science, and Fantasy Fiction
ISBN: 9780671318451