Part 5/10:
During the mission, signals were relayed through NASA's deep-space network, including tracking stations in places like Goldstone, California; Madrid, Spain; and Canberra, Australia.
When the Moon was not visible from Houston, signals could be routed through tracking stations in the Southern Hemisphere, allowing continuous contact.
This elaborate system ensured real-time communication, making it appear as if Nixon was directly talking to astronauts on the Moon.