Human colony on faraway planet
20674
Utopia of children brought up by robots
92004
Looking for old book, SF, artificial world, different zones for different species that visitors "inhabit"
17712
Short story about aliens that are parts of a spaceship
16900
A short story about finding an inhabitable planet and meeting aliens
28481
Short story, where FTL travel is very simple but humans never discovered it
118769
Story about Missionaries on Mars
6794
Book about aliens arriving in an old country; people capture their spaceship and arrive at alien's planet
90979
Two humans land on a planet; one learns to communicate with aliens
145964
Planet farthest from Coruscant?
26229
Looking for story - post human galactic civilization
142162
Alien surface transport that walks, not rolls
57737
Spaceship outruns the end of the universe - influences evolution on another planet
15303
novel identification: alien scientists must save their civilization from future destruction
134874
Old story where a colonist is sent by a company to colonise a new planet where he meets a robot
119018
Space war, humans recreated, grown from plants with an alien female supervisor
44038
Stranded spaceman prepares a plan to defend pristine planet against land-grab and exploitation
80318
Benevolent aliens who (initially) refuse to show themselves