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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 opera2015

Blood of the Cosmos

Kevin J. Anderson

4.0(1)Open Library rating out of 5

Body Switchers from Outer Space

Nina Kiriki Hoffman

4.0(1)Open Library rating out of 5

Bones of empire

William C. Dietz

4.0(1)Open Library rating out of 5

boom!

Mark Haddon

4.0(1)Open Library rating out of 5

Borderlands

the fallen

John Shirley

4.0(1)Open Library rating out of 5

Born into light

Paul Samuel Jacobs

4.0(1)Open Library rating out of 5

Bowl of Heaven and Shipstar

Gregory Benford; Larry Niven

4.0(1)Open Library rating out of 5

Brain stealers

W. R. Philbrick

4.0(1)Open Library rating out of 5

Break Out

Nina Croft

4.0(1)Open Library rating out of 5

Bridge of ashes

Roger Zelazny

4.0(1)Open Library rating out of 5

Brightest Night

Jennifer L. Armentrout

4.0(1)Open Library rating out of 5

Bruce Coville's Alien Visitors

Bruce Coville

4.0(1)Open Library rating out of 5

Bruce Coville's Book of Aliens II

More Tales to Warp Your Mind (Book of Aliens)

Bruce Coville

4.0(1)Open Library rating out of 5

Bruce Coville's strange worlds

Bruce Coville; Steven Roman

4.0(1)Open Library rating out of 5

Bruce Coville's UFO's

Bruce Coville; Steven A. Roman; Ernie Colón; John Nyberg

4.0(1)Open Library rating out of 5

Burn

Walter Jury

4.0(1)Open Library rating out of 5

Cage a man

F. M. Busby

4.0(1)Open Library rating out of 5

Camelot 30K

Robert L. Forward

4.0(1)Open Library rating out of 5

Can You Survive an Alien Invasion?

An Interactive Doomsday Adventure

Blake A. Hoena; Paul Fisher-Johnson

4.0(1)Open Library rating out of 5

Carson of Venus

Edgar Rice Burroughs

4.0(1)Open Library rating out of 5

Castaway planet

Eric Flint

4.0(1)Open Library rating out of 5

Castaway Planet

Eric Flint; Ryk E. Spoor

4.0(1)Open Library rating out of 5

Cataveiro

E. J. Swift

4.0(1)Open Library rating out of 5

Time travel1978

Catface

Clifford D. Simak

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.