Novel about non modular aliens who die young
97483
Looking for book: contact with aliens, five different races, mismatched claws, biological imperative to breed
45497
Story about a deadly alien creature on another planet that has some chemical in its body that makes it faster
116130
Novel about rendezvous with alien ship travelling through the solar system
46635
Book series about aliens who put "caps" on people to control them
18832
What Sci-Fi novel is about aliens who consider it simply convenient to exterminate the human race?
43429
Scifi novel from 90's with AI, robots, and a holodeck-like room
95235
Story about a sentient star system, in a 50s or early 60s anthology
56021
Movie about a civilization with limited life span and an integrated light indicator in their hands showing when they were about to die
16900
A short story about finding an inhabitable planet and meeting aliens
135002
Short story about astronauts being killed one by one by a non-corporeal alien entity on a deserted planet
58614
Book about space alien cats
101398
Book about two alien castes, alien hand modification
144490
'80s sci-fi novel about about an astronaut returning to Earth to find it devoid of human life
145141
SciFi book series about a collection of humans who get taken by a lightning quick alien race
79371
Novel in which the protagonist fades out is forgotten by, and can't interact with, the rest of the world
146574
Help finding a sci-fi book with a small space ship
98030
Science Fiction novel or novels about starship that becomes a god, colonizes hostile planet