NASA is a sprawling organization that has to talk to everything from politicians in Washington DC to space probes that have left the solar system. Discussions with the first might be as simple as a written letter for informal conversation, while the second requires a high-power network of ground-based antennas. Known as the Deep Space Network (DSN) this series of antennas spread over three continents is the backbone of NASA’s communications with its various space probes. Now the DSN is in the process of implementing a well-deserved upgrade.
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