Alien signals may be hiding where we rarely listen
News Source : Science Daily
News Summary
- Most SETI (Search for Extraterrestrial Intelligence) projects have targeted frequencies between 1.42 and 1.66 GHz.
- New research suggests that higher radio frequencies could offer another valuable place to search for technological signals from distant civilizations.
- Researchers used archived observations from the Atacama Large Millimeter/submillimeter Array (ALMA) in Chile to conduct the telescope's first SETI survey.
- The search did not identify any candidate technosignatures (alien signals) above the survey's detection thresholds.
Astronomers looking for evidence of intelligent life beyond Earth may have overlooked promising signals simply because they have concentrated on a relatively narrow portion of the radio spectrum.
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