Aliens searching for help against other aliens find a previously locked-away Earth and ask for help
9327
Short story where the Earth has been kept inside a force field for millennia
123838
Book about a planet covered in very, very long necked aliens
134448
Looking for a novel about a dystopian future where the resistance operates a help line
31135
Movie with a returning probe/satellite, an alien infection, and a nuke at the end
16900
A short story about finding an inhabitable planet and meeting aliens
151557
A man who sometimes works for the UN accidentally sells the Earth to an alien
15303
novel identification: alien scientists must save their civilization from future destruction
24884
Story ident : Solar powered aliens
110814
A barrier isolates Earth from space and slows down time
60620
Dead earth , aliens revive human
45497
Story about a deadly alien creature on another planet that has some chemical in its body that makes it faster
90979
Two humans land on a planet; one learns to communicate with aliens
6002
Story (series) identification: Mind controlling satellite, a return to Earth, and two warring alien species
142054
Seeking title / author of a story about alien first contact with Earth
97147
Short story about aliens who invade Earth and are baffled by the climate
100510
Novel where a group of scientists in a spaceship encounter various aliens
113926
Story about a space war, and a human prisoner of war captured by alien enemy