More like Loophole

anchored on:science fictionfar futurespace explorationspaceadventurous

but

Narrow

Known SpaceUniverse
universe142 books1964
About aliens, set in other star systems.
“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, Fleet of Worlds, Man-Kzin Wars
Starman JonesNovel
Robert A. Heinleinstandalone novel1953
Space opera, about coming of age, set in spaceship.
“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
The Colors of SpaceNovel
Marion Zimmer Bradleystandalone novel1963
Space opera, mysterious in tone, about aliens, set in other star systems.
“The Lhari seem peaceful and friendly, but they go to some lengths to protect their monopoly on faster-than-light travel.”
from the catalogue
HeecheeSeries
series19 books1972
completed
Space opera, about aliens, set in other star systems.
“The Heechee are an advanced alien race that visited the Solar System hundreds of millennia ago and then mysteriously disappeared.”
from the catalogue
Start with Gateway →
Tunnel in the SkyNovel
Robert A. Heinleinstandalone novel1955
About survival and coming of age, set in other star systems.
“As the final test of a survivalist/explorer class, teenagers are dumped on an alien planet to use their skills while awaiting pickup.”
from the catalogue
Space BeagleSeries
series5 books1939
completed
Space opera, tense in tone, about aliens, set in spaceship.
Start with Black Destroyer →