Space Weather Broadening of Signals Pushes SETI Toward Broadband Searches

To the point

Space weather can blur narrowband signals, so despite SETI’s focus on sharp beacons, Gajjar and Brown show a 100 MHz signal could broaden by about 100 Hz in the solar environment and be magnified by activity, suggesting broadband or spread-spectrum signals may be more detectable (Simon George notes Earth’s shift to broadband hints aliens might do the same), while Elliott sees potential gains with computing power and AI and Atwell cautions that overall odds remain small amid METI debates.