Episode Rankings
- #1 Fan FavoriteClick to reveal
The 20 WORST Episodes of When We Left Earth: The NASA Missions
READ


Every episode of When We Left Earth: The NASA Missions ranked from best to worst. Let's dive into the Best Episodes of When We Left Earth: The NASA Missions!
A miniseries documenting American human spaceflight, spanning from the first Mercury flights through the Gemini program to the Apollo moon landings, the Space Shuttle, and the construction of the International Space Station. It was created
"Ordinary Supermen" is the best rated episode of "When We Left Earth: The NASA Missions". It scored /10 based on 0 votes. Directed by Grace Chapman, Mary Crisp and written by Ed Fields, it aired on 6/8/2008. This episode scored 0.0 points higher than the second highest rated, "Friends and Rivals".