The Green Hills of Earth
Robert A. Heinlein
Future History or "Heinlein Timeline" (16)
Wings
Terry Pratchett
Bromeliad Trilogy (3)
The Healer's War: A Fantasy Novel of Vietnam
Elizabeth Ann Scarborough
Have Space Suit—Will Travel
Voyage
Stephen Baxter
NASA Trilogy (1)
Titan
NASA Trilogy (2)
Moonseed
NASA Trilogy (3)