PG rated sci-fi books

3620 books

Sci-fi books with mild content — safe for most readers. May contain mild peril or fantasy violence but nothing graphic.

The Martian Chronicles
The Martian Chronicles
Ray Bradbury
PG
Night of Power
Night of Power
Spider Robinson
PG
A Medicine for Melancholy
A Medicine for Melancholy
Ray Bradbury
PG
A Gathering of Heroes
A Gathering of Heroes
Paul Edwin Zimmer
PG
Maya and the Robot
Maya and the Robot
Eve L. Ewing
PG
R Is for Rocket
R Is for Rocket
Ray Bradbury
PG
S Is for Space
S Is for Space
Ray Bradbury
PG
The Stone and the Maiden
The Stone and the Maiden
Dennis Jones
PG
The Long Patrol
The Long Patrol
Glen A. Larson; Ron Goulart
PG
The Granite Shield
The Granite Shield
Fiona Patton
PG
The Cyberiad
The Cyberiad
Stanislaw Lem
PG
The Omega Point
The Omega Point
George Zebrowski
PG
The Star Diaries
The Star Diaries
Stanislaw Lem
PG
Blood Enemy
Blood Enemy
Greg Cox
PG
Covenant
Covenant
John Everson
PG
The Mating of the Blades
The Mating of the Blades
Achmed Abdullah
PG
Isle of the Dead
Isle of the Dead
Emily Rodda
PG
Alan Mendelsohn, the Boy from Mars
Alan Mendelsohn, the Boy from Mars
Daniel M. Pinkwater
PG
Disaster on the Titanic (Ranger in Time #9)
Disaster on the Titanic (Ranger in Time #9)
Kate Messner
PG
There's an Alien in My Classroom!
There's an Alien in My Classroom!
Bruce Coville
PG
Judgment in Death
Judgment in Death
J. D. Robb
PG
A Blade for Sale
A Blade for Sale
David Lindsay
PG
3001: The Final Odyssey
3001: The Final Odyssey
Arthur C. Clarke
PG
Elementary, My Dear Groucho
Elementary, My Dear Groucho
Ron Goulart
PG
Avalanche Soldier
Avalanche Soldier
Susan R. Matthews
PG
Lucky Starr and the Pirates of the Asteroids
Lucky Starr and the Pirates of the Asteroids
Paul French
PG
Sex and Drugs and Sausage Rolls
Sex and Drugs and Sausage Rolls
Robert Rankin
PG
Night Wars
Night Wars
Graham Masterton
PG
The Litany of Sh'reev
The Litany of Sh'reev
William John Watkins; Gene Snyder
PG
Beige Planet Mars
Beige Planet Mars
Lance Parkin; Mark Clapham
PG