The primary objective of Apollo 11 was to complete a national goal set by President John F. Kennedy on May 25, 1961: perform a crewed lunar landing and return to Earth.| NASA
Each of the three Deep Space Network, or DSN, sites has multiple large antennas and is designed to enable continuous radio communication between several| NASA
https://youtu.be/NTo5-YsjWlI Scientists and engineers can infer a spacecraft's location and how fast it's going by measuring changes in the spacecraft's radio| NASA
When it comes to making a long-distance call, it’s hard to top NASA’s Deep Space Network. It’s the largest and most sensitive scientific telecommunications| NASA