Space Weather Could Dilute Alien Radio Signals, SETI Finds, Prompting Extragalactic Searches

To the point

SETI researchers say space weather from other stars could broaden ultra-narrow alien radio signals, making detection harder—especially for planets around low-mass M-dwarf stars—and Grayce C. Brown notes that quantifying this helps tailor searches as SETI expands to extragalactic surveys with the Murchison Widefield Array and continues TRAPPIST-1 observations, amid rising public interest sparked by Barack Obama’s and Donald Trump’s UFO/UAP remarks.