communication with extraterrestrial intelligence 与外星智能的交流 Message to Extraterrestrial Intelligence 主动搜寻地外文明计划 Seeking ExtraTerrestrial Intelligence 寻找外星空间智能 ..
abstract:Communication with extraterrestrial intelligence (CETI) is a branch of the search for extraterrestrial intelligence that focuses on composing and deciphering messages that could theoretically be understood by another technological civilization. The best-known CETI experiment was the 1973 Arecibo message composed by Frank Drake and Carl Sagan.