The windows of SETI - Frequency and time in the search for extraterrestrial intelligence

Details The windows of SETI - Frequency and time in the search for extraterrestrial intelligence The windows of SETI - Frequency and time in the search for extraterrestrial intelligence

Dec 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987plr.....7f..23o&link_type=abstract

Planetary Report (ISSN 0736-3680), vol. 7, Nov.-Dec. 1987, p. 23-25.

Other

Extraterrestrial Intelligence, Interstellar Communication, Project Seti, Radio Communication, Time Dependence, Windows (Intervals)

Scientific paper

Since interstellar travel is not economically possible on the time scale of a human lifetime, communication with extraterrestrials can be achieved only by sending some form of energy or matter across space; photons (electromagnetic waves) are best. Of particular interest to SETI is the region from about 1,000-60,000 MHz known as the free-space microwave window. During the course of NASA's Cyclops program, it was pointed out that the hydrogen and hydroxyl lines bounded a band in which there were no other known lines. The threatened loss of the microwave window to earth-based services is discussed.

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