Series · Cosmic Mysteries
Where to watch Alien Worlds
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.
Where to watch
Streaming
Availability checked 2026-08-27. US only, powered by JustWatch via TMDB. Provider links open that service’s own search — our source supplies one link per title, not per provider, so these are searches rather than deep links.
On: Netflix
Cast
- Sophie OkonedoNarrator (voice)
- Kennda LynchSelf
- Magdalena SorgerSelf
- Carlos Santibanez-LopezSelf
- Diana NorthupSelf
- Avalon OwensSelf
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