Episode 1
Atlas
41m7.5 / 10
On Exoplanet Atlas, dense gravity creates a thick atmosphere allowing airborne life forms to thrive - but also providing a lesson in adaptability.
Where to watch Alien Worlds
TV series
Alien Worlds
2020TV-PG1 season6.8 / 10
Applying the laws of life on Earth to the rest of the galaxy, this series blends science fact and fiction to imagine alien life on other planets.
Streaming, rental and purchase options
Where to watch in United States
Checked Jul 22, 2026
Alien Worlds is available to stream on Netflix in United States. Use the direct links below to open the provider.
Stream
Synopsis
Applying the laws of life on Earth to the rest of the galaxy, this series blends science fact and fiction to imagine alien life on other planets.
Season 1 episodes
Choose an episode, then use the watch options above for the show.
Episode 2
Janus
46m8.0 / 10
Ants, scorpions and fireflies provide clues for biologists to conjecture about life on exoplanet Janus, including highly adaptable pentapods.
Episode credits
Directed by Daniel M. Smith, Tim Lambert, Suzy BoylesGuest stars Kennda Lynch, Magdalena Sorger, Carlos Santibanez-Lopez, Diana Northup, Avalon Owens, Donato Giovannelli
Episode 3
Eden
42m8.0 / 10
Twin stars create an oxygen-rich atmosphere on Eden, where a teeming biosphere may parallel seasonal cycles of predation and reproduction o Earth.
Episode credits
Directed by Nigel Paterson, Daniel M. Smith, Ben WilsonGuest stars Natalie Batalha, Alejandro Rico-Guevara, David Reznik, Mark Charran, Palango, Tom Crowther, Allison Camp
Episode 4
Terra
48m8.0 / 10finale
A hyperadvanced species makes their home on doomed exoplanet Terra, which orbits an aging star. Now they must colonize another world, using robots.
Episode credits
Directed by Tim Lambert, Suzy BoylesGuest stars Adam Frank, Anna Dornhaus, Stuart Armstrong, Philip Metzger, Michael Foale, Doug Vakoch
Episode information updated Jul 22, 2026
More about Alien Worlds
Cast
Sophie OkonedoNarrator (voice)Kennda LynchSelf
Magdalena SorgerSelf
Carlos Santibanez-LopezSelf
Diana NorthupSelf
Avalon OwensSelf
Donato GiovannelliSelf
Natalie BatalhaSelfProduction details
- Status
- Ended
- Series type
- Miniseries
- Episodes
- 4
- Original language
- English
Networks & production
Netflix
Wall to WallUnited Kingdom
Themes
astrobiologyastronomyexobiologyexoplanetscience
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