Space Weather Could Muffle Signals from Advanced Civilizations, SETI Study Finds

To the point

Space weather could silence or smear messages from advanced civilizations by widening ultra-narrow signals through solar activity and coronal mass ejections, especially around small M-dwarf stars, and Grayce C. Brown notes that understanding this helps tailor Earth-based searches as SETI widens its hunt to extragalactic targets, including surveys of thousands of galaxies with the Murchison Widefield Array.