B Chinese quantum experiment - explain please

houlahound
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What is the desired outcome and why in space?

http://gbtimes.com/china/china-launches-worlds-first-quantum-science-satellite-jiuquan
 
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houlahound said:
What is the desired outcome and why in space?
The desired outcome is a demonstration that entanglement can persist at very large distances. In space, because at Earth there are disturbances which tend to destroy the entanglement.
 
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Desired outcome: completely secure communications with detection of eavesdropping.

Why in space? Because that is where communication satellites are.
 
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