Documentary

Alien Worlds

Name: Alien Worlds
Genre: Documentary

20206.5 IMDbEpisode avg 6.91 seasons · 4 rated episodes

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.

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Last updated 6/6/2026

Episode Rating Grid

Rows are episode numbers, columns are seasons. Every rated cell shows its numeric score.

9.0+

8.0-8.9

7.0-7.9

6.0-6.9

5.0-5.9

Below 5.0

Unrated/missing

Avg

6.9

6.8

6.9

Show Statistics

Weighted episode-level summaries calculated from the configured ratings source.

Open

Best episode

Consistency score

99/100

Std dev 0.04

Rated episodes

1,136 total votes

Episode ratings timeline

Each point is a rated episode. Hover or focus a point for episode details.

Top 3 episodes: S1E2 Janus6.9 S1E4 Terra6.9 S1E3 Eden6.9
Worst episode: S1E1 Atlas (6.8)
Highest-rated season: Season 1 (6.9)
Lowest-rated season: Season 1 (6.9)
Average episode rating: 6.9

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Alien Worlds

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Comments

Alien Worlds

Episode Rating Grid

Show Statistics

Episode ratings timeline

Streaming options

Related shows

Cosmos: A Spacetime Odyssey

The Planets

The Universe

Horizon

Wonders of the Solar System

How the Universe Works

Nova

The Outer Limits

Comments