More like Nobody's Children

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Known SpaceUniverse
universe142 books1964
About aliens.
“Give a clever species a few centuries and a working fusion drive, and it will fill the sky with problems.”
from the catalogue
Start with Ringworld →
includes Ringworld, Man-Kzin Wars, Fleet of Worlds
Citizen of the GalaxyNovel
Robert A. Heinleinstandalone novel1957
Space opera, about coming of age and identity.
“On a planet far distant from Earth, a lame beggar buys a young boy slave who has forgotten his origins.”
from the catalogue
Starman JonesNovel
Robert A. Heinleinstandalone novel1953
Space opera, about space exploration and coming of age.
“Starman Jones, a 1953 science fiction novel by Robert A. Heinlein, features a farm boy who wants to go to the stars.”
from the catalogue
Old Man's WarSeries
series16 books2005
Military science fiction and space opera, about war.
“Sign a document at 65, saying you intend to join up 10 years later.”
from the catalogue
Start with Old Man's War →
NovaNovel
Samuel R. Delanystandalone novel1968
Space opera, about quests and revenge.
“The plot concerns the spaceship captain Lorq Von Ray's search for a nova, which will produce the essential power source Illyrion, and his vendetta with the Red family, who seek to kill him.”
from the catalogue
The Stars My DestinationNovel
Alfred Besterstandalone novel1956
Space opera, about revenge and survival.