Two interesting facts about Apollo 8 beyond the whole first-flight-to-the-moon thing:

* Two of its three astronauts became CEOs of Fortune 500 companies: Borman at Eastern Airlines, and William Anders at General Dynamics. (The third, Jim Lovell, stayed with NASA and survived the Apollo 13 explosion.)

* Borman (command pilot) and Lovell (pilot) had flown together on Gemini. Borman again commanded Apollo 8, despite Lovell having more experience in space as he had flown again on Gemini as commander.