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Proceedings Paper

A brief history of the search for extraterrestrial intelligence and an appraisal of the future of this endeavor
Author(s): Stuart Bowyer
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Paper Abstract

The idea that credible searches for Extra-Terrestrial Intelligence (ETI) could be carried out were laid out in detail in the (now classic) paper by Morrison and Cocconi (1959).1 They suggested using the radio band for these searches. Since then radio searches have been carried out by over sixty different groups. No signals from ETIs have been identified. Most searches did not have high sensitivity and it is not surprising that ETI signals were not detected. It is important to note, however, that these efforts were instrumental in developing new technical capabilities and they helped generate wide interest in this field. In this paper I will briefly discuss the more sensitive searches that have been carried out and some of the other searches that are arguably quite innovative or have been influential in some other manner.

Paper Details

Date Published: 23 September 2011
PDF: 5 pages
Proc. SPIE 8152, Instruments, Methods, and Missions for Astrobiology XIV, 81520W (23 September 2011); doi: 10.1117/12.898962
Show Author Affiliations
Stuart Bowyer, Univ. of California, Berkeley (United States)

Published in SPIE Proceedings Vol. 8152:
Instruments, Methods, and Missions for Astrobiology XIV
Richard B. Hoover; Paul C. W. Davies; Gilbert V. Levin; Alexei Yu. Rozanov, Editor(s)

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