Mercury: Ordinary Supermen
- Episode aired Jun 8, 2008
- TV-G
- 44m
When We Left Earth examines the history of American spaceflight starting with the X-15 rocket plane and the Mercury program.When We Left Earth examines the history of American spaceflight starting with the X-15 rocket plane and the Mercury program.When We Left Earth examines the history of American spaceflight starting with the X-15 rocket plane and the Mercury program.