Story where space explorers find a planet that turns out to be Earth
126610
Series of novels involving a galactic empire in slow decline
110163
Sci-fi series where humans are reduced to a mathematical pattern and sent to another planet
6794
Book about aliens arriving in an old country; people capture their spaceship and arrive at alien's planet
121028
Aliens target wrong planet, causing life on Earth rather than destroying it
94161
Trying to remember title of a book about people on an asteroid/comet
75348
Interstellar Zoo story
31752
CG series about a beast planet
16594
Earth occupation/invasion book I read in the 90s
6618
Short story about astronauts landing on a planet of shapeshifters
81680
Story featuring smart people sent on a space mission to nowhere
25727
Short story about humans marooned on high gravity planet
85547
Does anyone remember the title of a book where single-celled organisms save some astronauts?
18199
Looking for sci-fi novel I read about humanity finding alien station on orbit of Earth
94172
Science Fiction story about humans escaping earth's destruction
17712
Short story about aliens that are parts of a spaceship
109023
Story about two wizards from Earth's past who go on relativistic trips through space
76615
A story about Earth in far future with a civilization centered around a huge tree