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The 20 BEST Episodes of When We Left Earth: The NASA Missions
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Every episode of When We Left Earth: The NASA Missions ranked from worst to best. Explore the Worst 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 worst 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 lower than the second lowest rated, "Friends and Rivals".