When kids reach a certain age they are shipped off to another planet
29891
1970s space cadet training novel for young adults
19498
Referring to adult-age sons and daughters as children
50963
Story Identification: interplanetary war won by teleporting bombs past force fields
75348
Interstellar Zoo story
107673
At what age is the Force detectable in children?
20521
Boy born in space needing to somersault and spin to counteract earth's rotation
11815
Why do these characters still seem to be the same age after the events of Endgame?
93979
Help Identifying a Sci-Fi Book: Humans transported to alien world and given tasks to escape
57737
Spaceship outruns the end of the universe - influences evolution on another planet
86467
Old kids show from the 80's about two kids with a magical compass that took them to another world
97727
Children's short story about material that accelerates away from gravity
118769
Story about Missionaries on Mars
43888
Age of universe?
102347
Children's SF book about moon folk going to live on another planet
30655
Age of a Space Marine?
81495
Does the universe have a different age to different observers?
110814
A barrier isolates Earth from space and slows down time