Sending Our Own Signals

  • Michael A. G. Michaud


Some of those interested in searching for extraterrestrials have proposed that we initiate contact by sending our own signals, in the hope that another civilization will detect them and respond. Calling attention to ourselves by such signaling has been described as “active SETI,” in contrast to passive listening.


Radio Telescope Passive Listening American Astronomer Arecibo Observatory Large Radio Telescope 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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© Springer Science+Business Media, LLC 2007

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  • Michael A. G. Michaud

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