One of the longest-standing techniques in humanity’s search for life beyond Earth may be causing scientists to miss alien signals entirely, a new study finds. Since the very beginnings of the search for extraterrestrial intelligence (SETI), narrowband radio signals have been the focus of these searches. Narrowband radio signals are considered ideal technosignatures — signs Continue reading "SETI may have been tuned to the wrong alien frequencies, study says" The post SETI may have been tuned to the wrong alien frequencies, study says appeared first on Astronomy Magazine .