Space Weather Distorts Interstellar Signals, Prompting New SETI Search Approaches

To the point

Gajjar and colleagues warn that space weather from host stars—stellar winds and flares—can distort alien signals, spreading their power across many frequencies and erasing the narrow-band signatures SETI has searched for, especially around active red dwarfs like TRAPPIST-1; they urge tailoring searches to stellar activity to improve detection chances, a point Grace Brown emphasizes in the context of memories of explorers such as John Glenn.