Book: alien fleet invades Earth armed with spears and shields
28481
Short story, where FTL travel is very simple but humans never discovered it
6002
Story (series) identification: Mind controlling satellite, a return to Earth, and two warring alien species
145842
Mankind prepares for a war with aliens by warring among itself
111401
Short sci-fi story about Earth blockaded by other human colonies
141480
Help identifing a book about people exiled to the distant past
86958
Trilogy: Alien-insects invade earth and are resisted by cyborgs
18199
Looking for sci-fi novel I read about humanity finding alien station on orbit of Earth
143007
Book with travellers, alien artefacts and age reversal
157823
Sci-fi novel with a house used by aliens as a station when space travelling, protected by a force field
27187
Sci-fi series: humans are immune to telepathy, become soldiers for an alien group fighting against invertebrate telepaths
92145
Funny short story on man and insect that land on new planet and irritate war-loving inhabitants
50963
Story Identification: interplanetary war won by teleporting bombs past force fields
791
SF Short Story: alien apes invade during nuclear war
110453
80s-90s Sci Fi book about a transformed Earth invaded by aliens
142054
Seeking title / author of a story about alien first contact with Earth
57375
In which book did alien protagonists absorb and mutate humans, turning their flesh into biological weapons that they then used against other humans?
82118
Novel about interstellar war: Both sides win, both sides think they lost