Stormy Space Weather Distorts Signals from Distant Worlds, Redefining Technosignature Searches

To the point

Stormy space weather around stars can broaden and weaken ultra-narrow radio signals from other worlds as they travel, spreading their energy across more frequencies and making them harder to detect, so radio searches may need to use higher frequencies and account for this broadening in their analysis.

Stormy space weather may be garbling messages from aliens, new research suggests
theguardian.com

Stormy space weather may be garbling messages from aliens, new research suggests

Researchers who listen for signs of non-human life say signals ‘can slip below detection thresholds, even if it’s there’