Stellar Plasma Broadening Could Obscure Narrow Technosignatures, Reframing SETI Search Strategies
To the point
New research led by Vishal Gajjar and Grayce Brown shows that turbulent plasma around stars can smear ultra-narrow alien radio signals into broader, weaker ones, meaning SETI should broaden its search to a wider range of signal shapes and reexamine archived data rather than assuming only pristine transmissions would be detectable.