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[ƼӢ﷭] ̽ͨѶ

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                  Probe into Extraterrestrial Intelligence and Communications

Probe into Extraterrestrial Intelligence

2060Ϳʼ ˷źţͼ ˽ ϵ50ȥˣ໹û  ˵κλǣಢδ δϡѧȻִŵ ֶָͨѰ ˵ͨѶ
Since the 1960s, man has already attempted contact with intelligent life in space.  All attempts have received no response . Nevertheless, Scientists continue to search for extraterrestrial intelligence.


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Instructions:
ƹ켣ѡ⣬ѧġ
    Move the tracking ball to select a question and listen to scientists' explanations.

:  ʱ:2012-07-03  ӡҳ  ر