UK,
2021, 4 h 51 min
(Length: 58–59 min)
Episodes(5)
Plots(1)
Professor Brian Cox journeys across the vastness of time and space revealing epic moments of sheer drama that changed the universe forever. (BBC iPlayer)
Gallery (117)
Photo © BBC Studios
![Universe - Alien Worlds: The Search for Second Earth - Photos](http://image.pmgstatic.com/cache/resized/w663/files/images/film/photos/166/974/166974702_dc8f37.jpg)
Photo © BBC Studios
![Universe - Alien Worlds: The Search for Second Earth - Photos](http://image.pmgstatic.com/cache/resized/w663/files/images/film/photos/166/974/166974703_34b94c.jpg)
Photo © BBC Studios
![Universe - Alien Worlds: The Search for Second Earth - Photos](http://image.pmgstatic.com/cache/resized/w663/files/images/film/photos/166/974/166974704_59464d.jpg)
Photo © BBC Studios
![Universe - Alien Worlds: The Search for Second Earth - Photos](http://image.pmgstatic.com/cache/resized/w663/files/images/film/photos/166/974/166974705_4ee608.jpg)
Photo © BBC Studios
![Universe - Alien Worlds: The Search for Second Earth - Photos](http://image.pmgstatic.com/cache/resized/w663/files/images/film/photos/166/974/166974706_9db972.jpg)
Photo © BBC Studios
![Universe - Alien Worlds: The Search for Second Earth - Photos](http://image.pmgstatic.com/cache/resized/w663/files/images/film/photos/166/974/166974707_afc0ed.jpg)
Photo © BBC Studios
![Universe - Alien Worlds: The Search for Second Earth - Photos](http://image.pmgstatic.com/cache/resized/w663/files/images/film/photos/166/974/166974708_4aaa5d.jpg)
Photo © BBC Studios
![Universe - Alien Worlds: The Search for Second Earth - Photos](http://image.pmgstatic.com/cache/resized/w663/files/images/film/photos/166/974/166974709_3291ab.jpg)
Photo © BBC Studios
![Universe - Alien Worlds: The Search for Second Earth - Photos](http://image.pmgstatic.com/cache/resized/w663/files/images/film/photos/166/974/166974710_f30962.jpg)
Photo © BBC Studios
![Universe - Alien Worlds: The Search for Second Earth - Photos](http://image.pmgstatic.com/cache/resized/w663/files/images/film/photos/166/974/166974711_b85228.jpg)