

Documentary
The Best Episodes of Horizon Season 43
Every episode of Horizon Season 43 ranked from best to worst. Discover the Best Episodes of Horizon Season 43!

Documentary
The Best Episodes of Horizon Season 43
Every episode of Horizon Season 43 ranked from best to worst. Discover the Best Episodes of Horizon Season 43!
Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
Seasons60
Season 43 Ratings Summary
"Space Tourists" is the best rated episode of "Horizon" season 43. It scored /10 based on 0 votes. Directed by Unknown and written by Unknown, it aired on 1/12/2006. This episode is rated 7.3 points higher than the second-best, "Waiting for a Heartbeat".