The Deep Space Network, or DSN, is a world-wide network of large antennas and communication facilities that supports interplanetary spacecraft missions. It also performs radio and radar astronomy observations for the exploration of the solar system and the universe, and supports selected Earth-orbiting missions. DSN is part of the NASA Jet Propulsion Laboratory (JPL). Other similar networks include ESTRACK of the European Space Agency, the Soviet Deep Space Network, the Indian Deep Space Network, and the Chinese Deep Space Network.
Read more about Deep Space Network: Deep Space Networks, History, DSN and The Apollo Program, General Information, Management, Antennas, Current Signal Processing Capabilities, Network Limitations and Challenges
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“Whoever knows he is deep tries to be clear, but whoever wants to seem deep to the crowd tries to be obscure. For the crowd supposes that anything it cannot see to the bottom must be deep: it is so timid and goes so unwillingly into the water.”
—Friedrich Nietzsche (1844–1900)
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—Gérard De Nerval (1808–1855)