io9 - 6.12.13 by GEORGE DVORSKY
The idea of messaging ETs has been around for a while now, and typically goes by the name METI (Messaging to Extraterrestrial Intelligence) or Active SETI. The basic idea is that, instead of just listening passively for an alien radio signal, we should deliberately try to send messages into space in hopes of attracting the attention of alien civilizations.
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