NASA has started a 10-year search for extraterrestrial intelligence.

美国航空航天局已经启动了一个为期10年的寻找外星生物的项目。

《柯林斯英汉双解大词典》

The real threat would come from the discovery of extraterrestrial intelligence.

真正的威胁会来自于外星智慧生物的发现。

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The search for extraterrestrial intelligence, or SETI, is a 50-year-old idea.

用这个方法搜索地外文明（英文为SETI），已是一个有50年历史的构想了。

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Such schemes gained fame with the project known as SetiAtHome (for Search for Extraterrestrial Intelligence) (FORBES, Nov. 15, 1999).

FORBES: Sharing Power

The Institute, whose goal is to Search for Extraterrestrial Intelligence, has a clear, attractive layout -- and a sense of humor.

CNN: The Internet: the final frontier for space watchers

As anyone who has seen the Discovery Channel broadcast knows, it did an excellent job of explaining astrobiology and the search for extraterrestrial intelligence.

CNN: Should we fear space aliens?