caf78232-0e9e-4c03-9904-82833f903898 (IMAGE) SETI Institute Caption The first extragalactic search for technosignatures at low frequencies covers 2,800 galaxies in one search. Credit SETI Institute Usage Restrictions With credit License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.