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THE SCIENCE FICTION ARCHIVEExplore by theme ↗

Alien life

Encounters with life beyond our own world.

All books Space opera Time travel Artificial intelligence Alien life Cyberpunk Space exploration Dystopian worlds More themes +

3,897 books in alien life

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Balanced rating combines the average and the number of ratings; small samples carry less weight. How ranking works ↗

Space opera2014

Hellhole

Inferno Bk. 3

Brian Herbert; Kevin J. Anderson

4.0(1)Open Library rating out of 5

Helliconia Winter

Brian W. Aldiss

4.0(1)Open Library rating out of 5

Here come the aliens!

Colin McNaughton

4.0(1)Open Library rating out of 5

Space opera2011

Hex

Allen M. Steele

4.0(1)Open Library rating out of 5

Hidden in Sight (Web Shifters, 3)

Julie E. Czerneda

4.0(1)Open Library rating out of 5

Hilo Book 1

the Boy Who Crashed to Earth

Judd Winick

4.0(1)Open Library rating out of 5

Hilo Book 5

Then Everything Went Wrong

Judd Winick

4.0(1)Open Library rating out of 5

Holly Farb and the Princess of the Galaxy

Gareth Wronski

4.0(1)Open Library rating out of 5

Homeward bound

Harry Turtledove

4.0(1)Open Library rating out of 5

Homeward Bound

Harry Turtledove

4.0(1)Open Library rating out of 5

Homicidal aliens and other disappointments

Brian Yansky

4.0(1)Open Library rating out of 5

Space opera2002

Hour of the Gremlins

Gordon R. Dickson; Ben Bova

4.0(1)Open Library rating out of 5

House of reeds

Harlan, Thomas.

4.0(1)Open Library rating out of 5

How Leaders Decide

A Timeless Guide to Making Tough Choices

Greg Bustin

4.0(1)Open Library rating out of 5

Howard the Duck

Ellis Weiner

4.0(1)Open Library rating out of 5

Howling Stones

Alan Dean Foster

4.0(1)Open Library rating out of 5

Human or Alien?

Suzanne Williams

4.0(1)Open Library rating out of 5

Hungry

Alethea Eason

4.0(1)Open Library rating out of 5

Hunters

Jack Lovejoy

4.0(1)Open Library rating out of 5

Hunters of the Red Moon

Marion Zimmer Bradley

4.0(1)Open Library rating out of 5

Space opera2011

Hybrids

Whitley Strieber

4.0(1)Open Library rating out of 5

I Left My Sneakers in Dimension X

Bruce Coville; Katherine Coville

4.0(1)Open Library rating out of 5

I, alien

Mike Resnick

4.0(1)Open Library rating out of 5

Ice, Iron And Gold

S. M Stirling

4.0(1)Open Library rating out of 5

Theme matches come from subjects on a work or its English editions, or a cited editorial review. Each book’s discovery notes show the evidence.