Study questions assumptions about hidden alien technosignals

Berlin, Germany (SPX) Feb 18, 2026

For more than sixty years, astronomers have conducted systematic searches for technosignatures, looking for artificial radio emissions, laser flashes, or excess heat that could reveal advanced civilizations in the Milky Way.

Despite decades of monitoring across radio, optical, and infrared bands, no technosignature has been confirmed, a result often attributed to the fact that only a small