A Deepness in the Sky

A Deepness in the Sky
AuthorVernor Vinge
Cover artistBob Eggleton
LanguageEnglish
SeriesZones of Thought universe
Genrescience fiction
Published1999 (Tor Books)
Publication placeUnited States
Media typePrint (Hardback, Paperback)
Pages606 (Hardback), 775 (Paperback)
ISBN0-312-85683-0 (Hardback 1st edition), ISBN 0-8125-3635-5 (Paperback)
OCLC40150541
813/.54 21
LC ClassPS3572.I534 D44 1999
Preceded byA Fire Upon the Deep 
Followed byThe Children of the Sky 

A Deepness in the Sky is a science fiction novel by American writer Vernor Vinge. Published in 1999, the novel is a loose prequel (set 30,000 years previous) to his earlier novel A Fire Upon the Deep (1992). The title is coined by one of the story's main characters in a debate, in a reference to the hibernating habits of his species and to the vastness of space.