Apparently, what leaves most people at awe doesn’t impress the NASA scientists a bit, like chatting with your buddies 8000 miles across continents at real time. NASA wants to put up a communication network that will allow them to chat, or communicate with various probes, rovers, orbiters and spacecraft exploring the solar system – effectively binding them together to form an interplanetary Internet.
At the interplanetary level communication delays are huge, and variable because the planets are in orbit around the sun. Existing communication protocols like the TCP/IP breaks down under such conditions. NASA has been performing tests on more robust network technologies, called Delay Tolerant Networking, or DTN, protocols, the second test of which was successfully conducted on the International Space Station.
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