Novel with humans travelling to a distant planet becoming super-intelligent
119198
Looking for title of a sci-fi story about a one-way space journey
17303
Young adult book about a boy(?) who gets sent through a portal to another world which is really the distant future
76615
A story about Earth in far future with a civilization centered around a huge tree
87095
Sci-fi novel involving living forever through teleporter copies
100531
Novel about a teleportation device and a con artist alien
55991
Book where human thoughts are affecting the universe
116839
Novel about alien species made of gas rings?
69693
Story about a future with races
2832
Book series with college students finding a way to open portals to other planets
148604
Name the book where the setting is a giant ship with a planet inside
2641
Short story that takes place off planet, involving sun and rain
102575
Sci-fi book with HUGE trees and catlike people
69401
Short SciFi story where humans join and evolve into a kind of multi-creature
75047
Scifi novel where humans defeat an ancient AI enemy by firing a wave of "slowness", preventing hyperdive space travel
26229
Looking for story - post human galactic civilization
110527
Sci-Fi novel that involves mind backups and (small) group minds
35707
SF novel about one-way scientific expedition to inhabited planet, where telepathic aliens "talk" sort of ++like this++ and ~*~this~*~