Story ident : Solar powered aliens
72061
Looking for a book about a crystal like prison planet
126070
Looking for an old story where humans conceal their newly-discovered psychic abilities from alien visitors
12720
Short Sci-fi story about a sentient planet/creature that exists to seed the universe with life
114536
Story about earth children playing with alien toys. Who wrote it?
58511
Story ID, 30+ years old, (Cannibal?) aliens viewed through portal having a picnic
104183
Short story with space microbes latching onto electromagnetic fields
61205
SciFi from an Alien's perspective
121028
Aliens target wrong planet, causing life on Earth rather than destroying it
131908
short story about astronauts/colonists in a hostile planet
46055
Short sci-fi story: aliens regret setting Earth's destruction in motion
154725
Looking for identification of SF story where humans are the "ancient evil"
102346
Old Budrys(?) end-of-world/alien invasion of NYC story
142054
Seeking title / author of a story about alien first contact with Earth
135913
Identifying a "finding Earth" series of SciFi novels
116130
Novel about rendezvous with alien ship travelling through the solar system
17389
Need help recalling name of sci-if story about earth evolving into electronic life forms
67118
Short story about alien invasion with a twist.