See also: Communication | SETI

Acronym Communication with Extraterrestrial Intelligences.

This project is analogous to SETI, only in this case, we’re supposed to be sending instead of listening. So far, the efforts at CETI have been negligible at best. It may turn out that everyone else is justlistening as well, and other civilizations also fail to persuade their politicians to spend money on sending signals into space.

Fortunately, we’re involuntarily doing so with our TV and radio signals that are broadcast in all directions. (One of the first strong broadcasts was Hitler’s opening ceremony of the Olympic Games in Berlin, 1936; the receipt of this signal by an alien civilization is the premise behind Carl Sagan’s book Contact and the movie with Jodie Foster). With a big enough radio telescope, we might be able to listen to ET’s version of I love Lucy.

TakeDown.NET -> “CETI