Skip to content

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 +

3,900 books in alien life

Clear filters ×

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

Torchwood

Border Princes

Dan Abnett

4.0(1)Open Library rating out of 5

Torchwood

Gary Russell

4.0(1)Open Library rating out of 5

Torchwood

Trace Memory (Torchwood)

David Llewellyn

4.0(1)Open Library rating out of 5

Towers of Darkover

Marion Zimmer Bradley

4.0(1)Open Library rating out of 5

Transfigurations

Michael Bishop

4.0(1)Open Library rating out of 5

Space opera2010

Transformation Space

Book Four of the Sentients of Orion

Marianne de Pierres

4.0(1)Open Library rating out of 5

Tribulations

Ken Shufeldt

4.0(1)Open Library rating out of 5

Triplet

Timothy Zahn

4.0(1)Open Library rating out of 5

Space opera2009

Troublesome Minds

Star Trek

Dave Galanter

4.0(1)Open Library rating out of 5

True Blood

Patricia Waddell

4.0(1)Open Library rating out of 5

Twinkle, twinkle little star

Ben Barzman

4.0(1)Open Library rating out of 5

Space opera1995

Typhon's Children

Toni Anzetti

4.0(1)Open Library rating out of 5

Tyrannosaurus Ralph

Nate Evans

4.0(1)Open Library rating out of 5

UFOs and aliens

what would you do if you met an alien?

William R. Alschuler

4.0(1)Open Library rating out of 5

Ultimate Nose Pickers Collection, The

Gordon Korman

4.0(1)Open Library rating out of 5

Ultimate World

Hugo Gernsback

4.0(1)Open Library rating out of 5

Ultraman

This is the beginning of a new age

Eiichi Shimizu

4.0(1)Open Library rating out of 5

Ultraman

Eiichi Shimizu

4.0(1)Open Library rating out of 5

Ultraman Vol. 4

His name is the same as the man who can perform miracles

Tomohiro Shimoguchi

4.0(1)Open Library rating out of 5

Time travel1998

Under Loch and Key (Goners)

Jamie Simons; E. W. Scollon

4.0(1)Open Library rating out of 5

Space opera2014

Undercity

Catherine Asaro

4.0(1)Open Library rating out of 5

Undertaker's Gift

Trevor Baxendale

4.0(1)Open Library rating out of 5

Unearthed

Amie Kaufman; Meagan Spooner

4.0(1)Open Library rating out of 5

Unearthly Disclosure

Conflicting Interests in the Control of Extraterrestrial Intelligence

Timothy Good

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.