Some issues on future deep-space communication network are studied, and the research developments on deepspace communications network protocols are depicted.

分析了未来深空通信网络面临的难题；阐述了深空通信网络协议的研究现状；

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The technology is very similar to DeepSpace-1, the mission that was successfully sent to test emerging space technologies in 1999.

CNN: Space's threat to civilization