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Communication with Extraterrestrial Intelligence


 

CETI (Communication with Extraterrestrial Intelligence, or more correctly METI, Messaging to Extraterrestrial Intelligence) is a branch of SETI research that focuses on composing and deciphering messages that could theoretically be understood by another technological civilization. The best known CETI experiment was the 1974 Arecibo message composed by Frank Drake and Carl Sagan.

Related Topics:
SETI - CETI - Arecibo message - Frank Drake - Carl Sagan

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CETI research has focused on three broad areas: mathematical languages, pictorial systems such as the Arecibo message, and algorithmic communication systems (ACETI).

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