Celebrate 10 years with TVMaze premium.

Alien Worlds: The Search for Second Earth

Are we alone in the Universe? Professor Brian Cox is on the hunt for aliens. There might be more planets than stars in our galaxy. Will we find a second Earth?

Celebrate 10 years with TVMaze premium.

Guest Cast

View full cast list »

Cast Appearances

View full appearance list »

Episode Discussion

No comments yet. Be the first!

Login to leave a comment on this episode.
Celebrate 10 years with TVMaze premium.